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Borderless Principle of Territoriality – Patent Law

Introduction   Patent law has long developed around the principle of territoriality. That is, a patent granted in one country has effect only within the borders of that country and cannot be enforced against acts occurring in another jurisdiction. Patent registration and enforcement are independently handled under each national legal system.   However, with the rise of the global digital economy and the proliferation of online platforms, it has become increasingly common for acts occurring in one country to directly target markets in another. In such cases, the limitations of traditional territoriality become apparent, and there is a growing need to reinterpret its boundaries. The principle of territoriality becomes blurred. A noteworthy case that reflects this issue is the decision rendered by the Korean IP High Court in Case No. 2023Na10693 (May 22, 2025). Case Overview   This case involves an Italian company (“A”) holding a patent for sock knitting machines, which filed a lawsuit against a Chinese company (“B”), claiming that B’s actions in China infringed its Korean patent rights. Plaintiff A alleged that Defendant B manufactured infringing products in China and either sold or advertised them for sale in Korea.   The court acknowledged that B did manufacture the products in China but found the evidence insufficient to prove actual sales in Korea. However, it was confirmed that B had advertised the products in Korean on Chinese e-commerce platforms and its own website (hosted on servers located in China), and had established a system enabling Korean consumers to make purchases. The decision focused on two key issues:   Issue 1: Jurisdiction of Korean Courts in International Cases   As this case involved a foreign plaintiff (Italian) suing another foreign defendant (Chinese) for alleged infringement of a Korean patent, a key issue was whether the Korean court had international jurisdiction.   The court relied on Article 2(1) of the Act on Private International Law which allows Korean courts to have international jurisdiction if the parties or the subject matter of the dispute has a substantial relationship with Korea.   The court evaluated the substantial relationship by focusing on (a) whether the result of the infringement occurred in Korea; and (b) whether the defendant’s advertising activities targeted Korean consumers.   It concluded that since the advertisement was clearly aimed at Korean consumers and the infringement effect took place within Korea, Korean courts had proper jurisdiction.   Furthermore, Article 39(1) of the same Act specifically provides that in IP infringement cases, a lawsuit may be brought in Korea if the result of the infringement occurred in Korea or the infringing act was directed toward Korea.   Issue 2: Whether Overseas Advertising Constitutes Patent Infringement in Korea   Under Korean patent law, an “offer for sale” is a form of patent infringement. The main question here was whether B’s advertising activities—carried out on Chinese platforms and websites—could be deemed an “offer for sale” in Korea.   The defendant had provided product information in Korean, allowed payment in Korean Won, enabled ordering and delivery within Korea, and provided customer support for Korean consumers. Accordingly, the court determined that these actions constituted a practical attempt to induce sales to Korean consumers and thus qualified as an “offer for sale” in Korea. Conclusion   The court ultimately recognized the jurisdiction of Korean courts and ruled that the defendant’s advertising activities constituted an infringement of Korean patent rights. A permanent injunction was issued.   This case demonstrates how the principle of territoriality is being expanded and reinterpreted in the digital age. The traditional border-based limitations of patent rights are increasingly being neutralized in the online environment, and courts in various jurisdictions are now focusing more on actual impact and targeted markets rather than formal geographical boundaries.   Japan’s Intellectual Property High Court has taken a similar approach. For example: In a 2022 ruling (July 20), it held that transmitting software from a foreign server to a device in Japan constituted “providing” the program invention. In a 2023 ruling (May 26), it found that transmitting system patent components from a foreign server to a device in Japan amounted to “manufacturing” and upheld infringement. In stark contrast to trade wars fought over rigid national borders, the expanding reach of patent rights across virtual borders is, to me, a personally fascinating development.

2025-06-13
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Practice Notes

Korean trademark opposition period reducing to 30 days from 22 July 2025

Previously reported amendments to the Korean Trademark Act, including a shorter opposition period and increased punitive damages for willful trademark infringement, will come into effect from 22 July 2025. Given the impact this could have on decision-making processes, brand owners and agents who deal with Korea as part of their practice are advised to take careful note. Further details below. ▒  SHORTER OPPOSITION PERIOD (2 months → 30 days) [Applies to applications published after the amendment comes into effect] The current deadline for filing an opposition is 2 months from the publication date of the application, but this will be reduced to just 30 days. The opposition deadline itself cannot be extended. However, per existing practice, it will still be possible to file a formal notice of opposition to meet the deadline, and substantiate the grounds for opposition via submission of a supplemental brief within a further 30 days. (The later submission deadline for the supplemental brief can usually be extended for up to 60 days for national applications, but not for Madrid applications.) The change is part of KIPO’s efforts to reduce the timeframe for trademark applications achieving registration.  While good news for applicants, who can expect their applications to register slightly quicker than before, any party who may wish to oppose the registration of a trademark application will have less time to make such a decision, so watch service notifications and the like will need to be reviewed and acted on more urgently.   ▒  INCREASED PUNITIVE DAMAGES (3x → 5x) [Applies to acts of infringement which occur after the amendment comes into effect] The current Trademark Act allows for up to 3x damages in cases of willful/intentional acts of infringement. This will increase to up to 5x punitive damages.  The increase to quintuple damages aims to further discourage willful/intentional violations of trademark rights through higher financial consequences, as well as offer more reasonable compensation for trademark owners who may have difficulty precisely quantifying the actual damages that have been incurred. 

2025-06-12
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Practice Notes

Trademark law revision tackling importation of counterfeit goods comes into effect

An amendment to the Korean Trademark Act aimed at curbing the influx of counterfeit goods from overseas e-commerce platforms has come into effect as of May 27, 2025. ▒  Why is the change necessary In recent years, Korea has seen a sharp uptick in the number of counterfeit items crossing the border. In the Korea Customs Service (KCS)’s most recent report on IPR seizures, it is stated that a total of 83,892 trademark-infringing items were detected in 2023, representing a significant increase from figures which had hovered around the 30,000 mark between 2019-2021. This goes hand-in-hand with Korean consumers’ increasing use of overseas direct purchases (i.e. ordering from a seller based overseas and having the item shipped directly to you), with KCS data showing that the total number of overseas direct purchases increased from around 43 million in 2019, to over 96 million in 2022, and over 131 million in 2023.  Counterfeit goods not only damage brand value, but can also pose a direct threat to consumer health and safety. According to a KCS press release, around a quarter of the low-cost jewelry products purchased via popular Chinese e-commerce platforms that they tested were found to contain carcinogens that exceeded domestic safety standards. In another case, counterfeit vitamins led to a patient’s liver function values more than doubling.  In this respect, the Trademark Act was previously ambiguous on the question of whether items purchased directly from overseas by consumers in Korea met the definition of “use of a trademark” when the goods were for personal/non-commercial use.   Though there is legal interpretation (IP High Court Case No. 2011Heo4868) stating that when a Korean consumer purchases goods from a foreign website, ownership is transferred upon receipt in Korea, constituting a “transfer” and qualifying as trademark use under the previous Act, said existing provisions presuppose a commercial basis for trademark use, with personal purchases by individual consumers not clearly being applicable. Thus, it was widely considered necessary to establish a clearer legal basis for infringement in order for Customs and related agencies to take more effective action against the growing counterfeit problem.    ▒  What has changed? The amendment introduces a new clause under Article 2(1)-11 of the Trademark Act defining the act of supplying, via a delivery agent or other third party,  goods (or packages of goods) bearing a trademark which has been affixed abroad, as trademark use.   This revision will work in tandem with KCS’s seizure powers under the Customs Act, which authorizes Customs to suspend clearance when trademark infringement is established, thus giving Customs authorities a much clearer legal basis to block counterfeit imports even when the item was purchased directly by a consumer for their own personal use. It is not expected that individual consumers purchasing small quantities of counterfeit goods for personal use will be targeted under the revised law, which focuses on the act of “supplying” such goods, but this would not apply to larger-scale imports for the purpose of resale. (Note that this revision has no bearing on the parallel import of genuine goods, which is generally permitted under Korean law.)   ▒  Comments Customs authorities now having increased power to block counterfeit goods from entering the country will have a significant impact on border enforcement, which had become challenging to manage in the face of ever-increasing cross-border e-commerce. This will result in stronger protections for brand owners and also address consumer health concerns.  With this development, now is a good time for brand owners to review their Korean trademark portfolio and consider actively recording their rights with Korean Customs, particularly for any marks which are subject to counterfeiting. The customs recordal system, under which brand guidelines and enforcement information can also be provided as reference materials, aims to improve the effectiveness of border seizures and will be bolstered by the now-expanded definition of trademark use.   Written by Jonathan Masters and Sang-eun Shin

2025-06-06
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Practice Notes

Korean Supreme Court confirms supremacy of registered exclusive trademark license agreement over earlier unregistered license

In a 27 March 2025 decision (No. 2024Da306691), the Korean Supreme Court ruled on a case concerning competing license rights granted by a trademark owner. In short, the Court confirmed that an unregistered non-exclusive license is not enforceable against a subsequently registered exclusive licensee, even where the non-exclusive license predates the grant of the exclusive license.  The case is likely to have an impact on licensing practice in South Korea, and highlights the value of timely registration with the Korean Intellectual Property Office (KIPO), a step which to date has not always been routinely carried out.  ▒  CASE BACKGROUND The matter involved a trademark owner who first granted a non-exclusive license to one company in July 2021, allowing use of a registered trademark throughout Korea. The parties had planned a joint business venture involving the production and sale of branded food products, but the business relationship deteriorated by late 2021. This non-exclusive license was not registered at KIPO. According to the trademark owner, the non-exclusive license was conditional on successful joint business formation and became void when such cooperation failed to materialize. In March 2022, the trademark owner granted an exclusive license for the same trademark to another company, and this license was registered with KIPO. When the non-exclusive licensee continued using the mark, the trademark owner and exclusive licensee asserted infringement under the Korean Trademark Act. A summary of the lower court decisions leading to the recent Supreme Court ruling is as follows: 1st Instance (Busan District Court | 7 June 2023) The Court decided in favor of the plaintiffs, ruling that: •    The non-exclusive license was implicitly conditional on joint venture success. •    That condition failed, so the license was void. •    The non-exclusive licensee’s use of the mark infringed the trademark and exclusive license. 2nd Instance (IP High Court | 24 October 2024) Upon appeal by the non-exclusive licensee, the IP High Court reversed the lower court’s findings, ruling that: •    There is no evidence that the license was conditional. •    The non-exclusive license remained valid. •    Use of the trademark by the non-exclusive licensee was authorized and not infringing.   ▒  SUPREME COURT RULING On appeal by the trademark owner and exclusive licensee, the main issue considered by the Supreme Court was whether the unregistered non-exclusive license granted to the defendant could override the rights of the exclusive licensee who had registered their license at KIPO.  With respect to the trademark owner, the Court ruled as follows: •    The IP High Court’s finding concerning the validity of the non-exclusive license is affirmed. •    The trademark owner’s claim that the license had terminated due to business failure is rejected for lack of clear contractual conditions or evidence. However, with respect to the exclusive licensee, the Court ruled as follows: •    An exclusive licensee has the exclusive right to use the mark within the licensed scope (Article 95(3) of the Trademark Act). •    A non-exclusive license which is not registered cannot be asserted against an exclusive licensee (Article 100(1)-1 of the Trademark Act). •    Thus, the non-exclusive licensee cannot rely on its unregistered license to defend against a claim of infringement. The Court remanded the case to the IP High Court to determine whether the defendant’s use constituted an infringement and whether damages or an injunction are warranted. The relevant provisions from the Korean Trademark Act are produced below for reference: Article 95 (Exclusive License) (1) A trademark right holder may establish an exclusive license on others in relation to his or her trademark rights. … (3) An exclusive licensee who has obtained establishment of the exclusive license under paragraph (1) shall exclusively possess the license of the registered trademark on designated goods to the extent determined by the establishment of the exclusive license. Article 100 (Effect of Registration of Exclusive License or Non-Exclusive License) (1) None of the following matters shall be effective against third parties unless they are registered: 1.    Establishment, transfer (excluding transfer by inheritance or other general succession), amendment, extinguishment by abandonment or restrictions on disposition of the exclusive license or the non-exclusive license; (2) Where the exclusive license or the non-exclusive license is registered, it shall also have the effect on any person who acquires the trademark rights or the exclusive license after registration thereof. ▒  TAKEAWAYS AND PRACTICAL GUIDANCE This decision is a clear reminder that the registration of licenses can be beneficial — and in certain cases, critical.  Formally registering non-exclusive licenses at KIPO has not been considered mandatory as the license relationship can usually be proven if and when required (e.g. to defend against a non-use cancellation action based on licensee use). However, as unregistered licenses cannot be asserted against third parties, licensees may in future wish to request that their rights are recorded in the trademark register to safeguard against future problems. From the perspective of a non-exclusive licensee, registration is also beneficial in that rights are preserved even if the trademark rights are assigned to another party (per Article 100(2) of the Trademark Act). Concurrent exclusive and non-exclusive licenses for the same trademark may co-exist in the register provided they differ in scope, i.e. cover different goods/services and/or different regions. Presumably, had the non-exclusive license in the subject case been registered at KIPO and remained valid, the later registration of the exclusive license (covering the same goods and territory) would have been refused on the ground of conflicting rights. This case does not discuss the issue of a trademark owner granting conflicting or overlapping licenses to different parties. As this scenario is not explicitly addressed in the Trademark Act, an affected licensee would likely have to rely on other means such as a contractual claim if they wished to pursue recourse against a licensor. With this in mind, to protect interests and also provide a basis for a legal claim should a dispute arise, licensees may be wise to request the inclusion of registration obligations and non-compete licensing clauses in future Korean license agreements, and IP-owning licensors should be aware of the increased likelihood of licensees making such requests.  Once a trademark license is registered at KIPO, it remains valid on the register until the date of expiry stated in the license agreement (which cannot exceed the term of protection of the trademark right being licensed), unless the registration is cancelled upon agreement of both parties. Practically, such cancellation requires a mutual termination agreement executed by both the licensor and licensee. Should there be a dispute between the parties and mutual agreement cannot be reached, a court decision rendering the license void or invalid may be required before KIPO will cancel the registration. (In other words, a registered license cannot be cancelled based on unilateral assertions of one party absent such evidence.)  Thus, it is imperative to conduct due diligence before entering into an agreement, including verification of the existence/non-existence of any earlier licenses, and the scope of any license being granted — goods/services, territory, and duration — must be carefully considered and defined.    Written by Jonathan Masters and Sang-eun Shin

2025-04-28
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Practice Notes

Enhancing Patent Stability in South Korea: Proposed Reforms to Invalidation Trial Proceedings

The Korean Intellectual Property Office's (KIPO) Intellectual Property Trial and Appeal Board (IPTAB) has announced a set of proposed reforms to its patent invalidation trial procedures, aimed at strengthening the reliability and enforceability of granted rights. Released on April 21, 2025, the proposal seeks to enhance procedural fairness for both patentees and challengers—and arrives at a time when Korea’s high invalidation rate has become a focus of policy attention. This concern is underscored by data, as highlighted at the recent 2025 IP Policy Forum in Seoul: in 2023, the invalidation rate stood at 44.4%—significantly higher than the 11.5% reported in Japan and 31.3% in the United States. Much of this has been attributed to the frequency of challenges based on lack of inventive step. The proposed reforms aim to address these procedural vulnerabilities while broader discussions continue around improving inventive step standards and judicial specialization. ▒  Key Procedural Reforms The core of the proposed reforms centers on three key areas: 1. Advance Notice of Invalidation Decision If the IPTAB finds an invalidation petition persuasive, it will issue a preliminary notice to that effect before formally rendering a decision. This would give the patentee an opportunity to amend claims through a correction request, potentially preserving the patent in a narrowed but valid form. The measure is designed to reduce unnecessary invalidations and provide greater predictability to right holders. The concept appears to share some surface similarity with the EPO’s preliminary opinion in opposition proceedings, though KIPO’s version would occur much later in the process and serve as a formal opportunity to amend before invalidation becomes final. 2. Stricter Evidentiary and Procedural Standards for Petitioners The IPTAB plans to enforce tighter evidentiary requirements on petitioners, including: More concrete and detailed supporting evidence. Strict adherence to submission deadlines under a "timely submission" principle. Early identification of disputed issues to streamline oral proceedings. 3. Strengthened Claim Construction Practices Petitioners will be encouraged to present their claim construction positions at an early stage. Where disagreements arise, both parties may be allowed additional opportunities to submit arguments and supporting materials. This is intended to reduce interpretive ambiguity and enhance procedural consistency. ▒  Practical Implications These proposed reforms reflect a maturing patent litigation environment in Korea: For patentees, the reforms offer an additional procedural safeguard before invalidation becomes final, encouraging the strategic use of post-grant amendments. For challengers, the raised evidentiary threshold promotes more diligent and substantiated invalidation filings. For international practitioners, the reforms support a more transparent and balanced process—an encouraging signal for those considering patent protection or enforcement in Korea. These proposed developments are expected to contribute to a more predictable and rights-secure patent system—one that aligns with global trends favoring opportunities for post-grant amendment over outright invalidation. They also reflect an ongoing shift in South Korea toward strengthening patent enforcement and supporting patentees across both legislative and procedural fronts, signaling a continued institutional focus on patent quality and legal certainty.     Written by Simon Voget and Gao Xun  

2025-04-25
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Practice Notes

Mass Registration Programs and Trademark Liability: South Korean Court Highlights Growing Risks in E-Commerce

Introduction   A recent ruling by the Korean IP High Court underscores an important shift in how courts assess trademark infringement risks in online marketplaces. At first glance, the case appears to be a standard counterfeit product dispute, but a closer analysis reveals a deeper issue.   The ruling highlights how the use of mass product registration tools — which allow sellers to list thousands of items on sales platforms automatically — can lead to uncontrollable trademark violations, exposing sellers to significant legal liability.   With automated bulk listing tools becoming increasingly popular among cross-border e-commerce sellers, this case serves as a stark warning: Sellers who prioritize speed and volume over control may face serious trademark infringement consequences.   Case Background   In IP High Court Case No. 2024Na10942 (Jan 23, 2025), the defendant, an online purchasing agency, used a mass product registration program to list thousands of products from Chinese e-commerce platforms on their own website. The system automatically imported product details, images, and prices — including, unintentionally, counterfeit goods.   The plaintiff, a trademark owner of well-known footwear brands, sued for trademark infringement, arguing that the defendant had displayed and sold counterfeit products using trademarks identical to their registered marks.   Defendant's Arguments   The defendant contended that: They had no direct involvement in selecting counterfeit products. The mass registration tool was merely a neutral listing mechanism and not intended for trademark infringement. It was impossible to manually verify each product, given the scale of automated listings. However, the Court dismissed these defenses, holding the seller liable for trademark infringement.   Key Findings of the Court   1.    Mass Registration Tools Do Not Exempt Sellers from Liability The court rejected the argument that a seller can avoid liability simply because a tool, rather than manual selection, was used to list the products. The defendant chose to use a system that inherently carried the risk of importing counterfeit listings at scale, and therefore, bore responsibility for the consequences. 2.    The Burden of Risk Falls on the Seller The court reaffirmed that ignorance of the infringement is not a valid defense. Even if the seller did not intend to list counterfeit goods, the act of using a high-volume, automated listing tool meant that they knowingly accepted the risk of IP violations occurring. 3.    Platform-Level Responsibility May Become a Legal Focus The ruling reflects growing judicial recognition that unchecked mass registration tools can enable widespread trademark violations. Courts may begin holding platforms accountable if they fail to impose reasonable controls on mass listings. These findings align with a 2013 Supreme Court decision (2013Da21666), which placed strict liability on businesses engaging in sales activities where they could have reasonably been aware of potential trademark conflicts.   The Bigger Issue: Mass Registration and the Breakdown of Seller Control   While this case technically deals with counterfeit product registration, the real issue is the systemic risk posed by mass product registration tools.   1. How Mass Registration Leads to IP Infringement The widespread adoption of bulk listing tools — popular in Korea, China, and other major e-commerce markets — is driven by sellers seeking to maximize revenue. These tools allow thousands of product listings to be imported in minutes, but in doing so, sellers lose control over product authenticity checks, verification of trademark compliance, and listing accuracy.   As a result, infringement is no longer a deliberate act, but an unavoidable byproduct of automation. The defendant in this case is just one example of many sellers facing IP disputes they did not foresee or actively intend to commit.   2. The Rise of Mass Registration Tools and Legal Risks YouTube tutorials and online seller training programs actively promote the use of mass product registration tools. Many sellers blindly rely on automation, assuming platforms or software providers will filter out infringing items — which often does not happen. This case highlights how IP owners are increasingly taking legal action against sellers who use such tools without safeguards. 3. Should E-Commerce Platforms Restrict Mass Registration? Given the frequency of trademark disputes arising from mass product registration, there is a strong argument that e-commerce platforms should intervene to reduce legal exposure for sellers.   Potential regulatory solutions include (i) limiting the number of simultaneous product uploads per seller within a given timeframe; (ii) implementing AI-driven screening for trademarked products before listings go live; and (iii) requiring sellers to manually confirm product authenticity for bulk uploads.   These measures would not prohibit online sales but would create a balance between e-commerce efficiency and IP protection, preventing unnecessary litigation and financial penalties for sellers.   Conclusion   This IP High Court ruling is more than just another counterfeit case — it signals a legal shift in how courts view mass registration and seller liability.   For sellers using automated bulk listing tools, this case should serve as a wake-up call that: Speed and convenience do not override legal responsibility. If a tool increases infringement risks, the seller must account for them. Failure to manage product listings can lead to costly legal consequences. As e-commerce continues to evolve, online platforms, sellers, and regulatory bodies must find ways to prevent mass registration from becoming a loophole for widespread IP violations. Otherwise, IP litigation will only escalate, creating an unsustainable future for digital commerce.

2025-02-13
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Practice Notes

Revised Patent Term Extension System in Korea: Implications for the Pharmaceutical Industry

Background Unlike patent systems in other countries, under the previous Korean Patent Act, there was no time limit from the marketing approval date for patent term extensions for pharmaceutical patents, and there were no restrictions on the number of patents that could be extended for a single regulatory approval, thereby allowing extensions of multiple patents — such as compound, use, formulation, and dosage regimen patents — based on a single drug approval.  The domestic pharmaceutical industry has expressed concerns that Korea’s patent term extension system has led to prolonged monopolies by foreign drug developers in the Korean pharmaceutical market, which, in turn, delayed the introduction of cheaper generic drugs, and as a result, disproportionately favors those patent holders when compared to systems in other countries, including the United States and Europe. Critics argue that the delayed market entry of Korean local generics limits public access to affordable medications and could strain health insurance finances. Amended Patent Act On December 27, 2024, in response to these concerns, the National Assembly of Korea passed a revision to the Patent Act with the following key provisions: (i) the patent term cannot exceed 14 years from the date of marketing approval, and (ii) only one patent per approval is eligible for extension. The revised Patent Act is expected to be promulgated as early as January 2025 and will come into effect six months after its promulgation, likely in July 2025. This revision will apply to patent term extension applications filed after its effective date. Lawmakers explained that the purpose of the revision was to address the lack of a cap on patent terms and the absence of limits on the number of patents eligible for extension, aiming to prevent delays in the release of generic drugs, and ensure early public access to medications, as well as to align Korea’s system with international standards, particularly those in the United States and Europe. Under the revised Patent Act, there is no change to the provision allowing for a maximum five-year extension, but a new additional cap has been introduced, limiting the total extension to 14 years from the date of approval, in line with US practice. Implications While the full impact of the revised patent term extension system is still uncertain, initial analyses suggest that it may lead to shorter patent terms for original drugs. Only for the purpose of explanation, there may be extreme cases where the impact of the new cap could be significant. For instance, when marketing approval is granted within six years from the international filing date, and the patent term is extended for about three years in Korea, the revised 14-year cap could result in only about four months of extension, despite a prior three-year extension (please refer to the following diagram).  Furthermore, for monopoly drugs where the revenue during the extended patent term exceeds the revenue during the original term, the consequences could be considerable. However, 2023 data on the status of effective patent terms for pharmaceuticals from 1999 to 2021 issued by the Korean Ministry of Food and Drug Safety (MFDS) shows that about 82% of pharmaceutical patents have an effective patent term of under 14 years, suggesting that extensions expire within 14 years from the approval date. As such, the new 14-year cap may have limited impact in many cases.  As a test, we applied the 14-year cap to 15 randomly-selected historic PTE cases handled by our office, and all resulted in extensions within the 14-year limit.  Perhaps the most significant change introduced by the revised Patent Act may be the limitation on the number of patents eligible for extension per product approval. Previously, multiple patents could be extended based on a single drug approval, for example, the above-mentioned data from MFDS also shows that the number of patent registrations exceeds the number of approvals by a factor of 1.7, which indicates that multiple patents may have been registered for a single product. Now, only one patent may be selected for extension. This is likely to have a notable impact on the strategies of original drug companies, as they may now need to focus on extending only one patent (substance patent or a secondary patent) to maximize their patent term. In contrast, generic companies will more easily be able to anticipate when the one extended patent of the original drug expires and this simplification may reduce the complexity of their market entry strategies. Additionally, the revised Patent Act clarifies the starting point for patent term extensions, specifying that the extended period due to delayed registration (Patent Term Adjustment, PTA) will be clearly defined. This ensures greater transparency and consistency in calculating patent term extensions based on regulatory approvals. The revised Patent Act also introduces provisions for rejecting applications for extension that exceed the 14-year cap, as well as allowing for invalidation petitions. If multiple patents are submitted for extension based on a single approval, none will be granted an extension.  Given these changes, patentees should be mindful of these new provisions when filing patent term extension applications after July 2025 in Korea.

2025-01-03
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Practice Notes

Upcoming Korean Trademark Act amendments, including shorter period for opposition

On December 27, 2024, the Korean IP Office (KIPO) announced that a bill including several Trademark Act amendments had passed the plenary session of the National Assembly. The amendments will take effect six months after the law's promulgation and are expected to come into effect around July 2025 (precise date not yet known). The amendments include a shorter opposition period and increased punitive damages for willful trademark infringement, as discussed below: SHORTER OPPOSITION PERIOD (2 months → 30 days) Under Korean trademark practice, all applications are substantially examined for both absolute and relative refusal grounds, and once the examiner is convinced that no relevant grounds for refusal exist, the application is published for the purposes of inspection and opposition. Following the publication date, any party can object to the registration of the mark by filing an opposition with KIPO.  The current deadline for filing an opposition is 2 months from the publication date of the application, but this will be shortened to 30 days. (The opposition deadline itself cannot be extended. However, provided a formal notice of opposition is filed by the opposition deadline, the opponent is granted a further 30 days to substantiate the grounds for opposition via submission of a supplemental brief. The submission deadline for the supplemental brief can be extended for up to 60 days for national applications, but not for Madrid applications.) As discussed in an earlier article, this change is in response to the increasing timeframe for trademark applications achieving registration.  By cutting the opposition period approximately in half, non-opposed applications will progress to registration around a month quicker, and as it is reported that only around 1% of all applications are opposed, the vast majority of applications will thus benefit from the amendment. While good news for applicants, this does mean that brand owners will have less time to make a decision on whether or not to oppose a potentially problematic application, and watch service notifications will need to be reviewed and acted on more urgently. INCREASED PUNITIVE DAMAGES (3x → 5x) Provisions for treble damages in trademark and design infringement cases were first introduced in October 2020, following similar earlier provisions for patent and unfair competition cases. With patent and unfair competition laws introducing up to quintuple damage awards in amendments that took effect earlier this year (as reported here), it is now the turn of the Trademark Act to benefit from further strengthened damages provisions. Willful/intentional acts of infringement that take place on or after the effective date of the amendment may be subject to up to 5x punitive damages.  While the availability of treble damage awards was seen as a big step forward in addressing the need for stronger deterrents against infringement in Korea, where historical damage awards were not seen as sufficient to outweigh the profit that could be gained from infringement, the increase to quintuple damages aims to further discourage willful/intentional violations of trademark rights through higher financial consequences, as well as offer better compensation for trademark owners who often struggle to provide concrete evidence of the financial harm caused by infringement, for example in cases involving loss of market reputation or other indirect financial impacts.

2024-12-30
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Practice Notes

Supreme Court clarifies the exclusive jurisdiction of the IP High Court in hearing IP-related civil cases (Ruling 2024Da228906 | October 31, 2024)

Introduction Civil cases concerning IP rights including patent rights, utility model rights, design rights, trademark rights, and plant variety protection rights fall under exclusive jurisdiction of specific courts. The first trial is under the exclusive jurisdiction of the Seoul Central District Court, Suwon District Court, Daejeon District Court, Daegu District Court, Busan District Court, or Gwangju District Court, while the second trial falls under the exclusive jurisdiction of the IP High Court. In this regard, the question arises as to what cases are encompassed within “civil cases concerning IP rights”. Supreme Court ruling 2024Da228906 (October 31, 2024) According to the Supreme Court, the reason for stipulating a separate rule on jurisdiction for cases concerning IP rights is that, generally, the hearing and judgment of disputes concerning such rights require specialized knowledge and an understanding of relevant technology; concentrating these cases in specialized courts contributes to the appropriate protection of IP rights. Last year, in ruling 2023Da277260 (December 28, 2023) pertaining to a damages claim, the Supreme Court confirmed that, even when the first trial is judged by a single judge of a district court (including small claims cases), the appeal still falls under the exclusive jurisdiction of the IP High Court. This latest Supreme Court ruling we are discussing (2024Da228906 | October 31, 2024) pertains to a case on liquidated damages. Specifically, the plaintiff, Defendant 1, and Defendant 2 entered into a settlement agreement to resolve a patent-related dispute and concluded the dispute by withdrawing ongoing invalidation trials or lawsuits. Later, the plaintiff filed a main action seeking payment of liquidated damages, claiming the defendants breached the agreement, while Defendant 1 filed a counterclaim, asserting that the plaintiff breached the agreement and also sought payment of liquidated damages. The first trial decision was rendered by a single judge of the district court, and the second trial decision was rendered by the district court’s panel division. In this regard, the Supreme Court held that the main and counterclaims in this case involve issues requiring an understanding of specialized knowledge or technology related to IP rights. Therefore, these claims fall within the scope of IP cases, and the second trial falls under the exclusive jurisdiction of the IP High Court. Consequently, the Supreme Court overturned the appellate court decision and transferred the case to the IP High Court. The Supreme Court particularly ruled as follows on the issue of whether an understanding of specialized knowledge or technology related to IP rights is necessary: Regarding the main action, it is necessary to examine and judge whether specific acts of the defendants fall under prohibited acts specified in the settlement agreement. This requires a comprehensive review of the details and outcomes of the patent-related invalidation trial, trial decision cancellation lawsuit, and scope confirmation trial,     as well as the identity between the technology for which the plaintiff applied and the plaintiff’s patented invention technology. Regarding the counterclaim, it is necessary to examine and judge whether specific acts of the plaintiff fall under prohibited acts specified in the settlement agreement. This requires a comprehensive review of the details of the defendants’ patented invention technology and whether the plaintiff included false information regarding the defendants’ patented invention in an application for designation as a new construction technology.   Comment This Supreme Court ruling is significant in clarifying that if the substantive nature of a dispute requires an understanding of specialized knowledge or technology related to IP rights, such cases are regarded as “civil cases concerning IP rights” and thus fall under the exclusive jurisdiction of the IP High Court.

2024-12-06
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Practice Notes

What Happens to Patent Licensing Agreements and Patent Non-Implementation Agreements When a Patent is Invalidated?

When a patent is invalidated after a Patent Non-Implementation Agreement is executed, what becomes of the legal relationship surrounding the agreement? Under the Korean Patent Act, if a patent is invalidated, it is considered to have never existed from the outset. Does this mean that if the other party used the patented invention, it is no longer considered a breach of contract? Additionally, if the other party proves that the invention they used falls under the category of free-to-use technology, would this eliminate their liability under the agreement? This article will first review relevant Supreme Court decisions regarding Patent Licensing Agreements and the invalidation of the related patent and then introduce the latest Supreme Court ruling delivered on November 20, 2024, which addresses these issues.    ______________________________________________________________________________________________________________________________________________________ Patent Licensing Agreements and the Invalidation of the Related Patent (Supreme Court Decision 2012Da42666, 42673 | November 13, 2014)    1.    Does a Patent Licensing Agreement Become Void If the Underlying Patent is Invalidated?    When a patent is invalidated after the execution of a licensing agreement, the patent is deemed to have never existed, except in specific circumstances. However, unless the patented invention that is the subject of the contract was impossible to implement, the Patent Licensing Agreement cannot be deemed to have been in a state of initial impossibility at the time of its execution. It is only upon the invalidation of the patent that the agreement is considered to enter a state of non-performance.    2.    Is the Patentee Obligated to Refund Royalties for the Period the Agreement Was Valid?    Even if the patent is invalidated, the patentee is not required to refund royalties received for the period when the licensing agreement was valid, unless the agreement was initially void or there were separate grounds for invalidity of the agreement.     A subsequent Supreme Court ruling (2018Da287362, April 25, 2019) reinforced this view, stating that patentees can claim royalties for the valid period of the agreement.    3.    Can a Licensing Agreement Be Voided Due to a Mistake About Patent Validity?    Given the inherent possibility of a patent being invalidated after registration, a licensing agreement cannot be voided for mistake unless the validity of the patent was explicitly agreed upon as a fundamental term of the contract. ______________________________________________________________________________________________________________________________________________________ Patent Non-Implementation Agreements and the Invalidation of the Related Patent (Supreme Court Decision 2024Da270105 | November 20, 2024)    1.    Does a Non-Implementation Agreement Lose Effect Upon Patent Invalidation?    Even if a patent is invalidated after the execution of a Non-Implementation Agreement, the agreement is not void from the outset. Instead, it becomes unenforceable only after the patent’s invalidation. Thus, unless there are separate grounds for invalidity of the agreement, the patentee can claim damages for breach of the agreement during the valid period    2.    Can the Defendant Argue Freedom-to-Use Technology as a Defense Against Breach    The fact that the defendant’s use of the invention constitutes freedom-to-use technology (i.e., technology that can be easily derived from public knowledge) does not exempt them from the obligations under the Non-Implementation Agreement, which remains binding as per the parties’ mutual understanding. ______________________________________________________________________________________________________________________________________________________ Conclusion The Supreme Court has clarified that neither licensing agreements nor non-implementation agreements are automatically void when the associated patent is invalidated. In licensing agreements, patentees can claim royalties for the period before invalidation, and refunds are not owed for royalties already received during that time. In non-implementation agreements, patentees can claim damages for breach of contract during the period before the patent’s invalidation, and defendants cannot evade liability by arguing freedom-to-use technology.

2024-12-05
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Practice Notes

Korean IP High Court upholds “upcycling” trademark infringement decision

 ▒  ORIGINAL DECISION (Seoul Central District Court - Case 2022GaHab513476) One of the most interesting recent developments in Korea for brand owners was the 12 October 2023 decision by Seoul Central District Court dealing with the issue of whether “reforming” genuine goods into different goods constitutes an infringement of the brand owner’s trademark rights, and if the doctrine of exhaustion (AKA first sale doctrine) applies to such goods. We previously wrote an article on this topic (see here), but in summary: The dispute involved a defendant who provided a service of altering branded bags (including those offered by the plaintiff) by using fabric and materials displaying the brand’s registered trademarks. Customers would submit original/genuine branded items, which the defendant would deconstruct and reassemble into modified products. The reformed items bore the original brand’s logo and design elements. See image below, taken from the first instance decision, showing how bags were transformed into wallets, card cases, smaller bags etc.: The court addressed whether transforming genuine products into new forms, e.g., bags to wallets, infringes on trademark rights. While the first sale doctrine limits the original trademark owner's control post-sale, issues arise when altered products are resold. Plaintiff claimed the transformations constituted infringement of their trademark rights and harmed their brand’s distinctiveness. Defendant argued that the modifications were for the owner’s use only, not resale, and did not damage the identity of the original product, and that there would be no source confusion as products were only distributed to the customer who provided the original item. The court ruled the transformations went beyond the scope of simple processing/repair and constituted an act of production, damaging the original product’s identity, and also commented that while the recipient of the products would not be confused as to their source, general consumers could still be confused if the reformed products are viewed by or transferred to a third party. Ultimately, the court ruled that the brand owner’s trademark rights were not exhausted and awarded damages in favor of the plaintiff.    ▒  APPEAL DECISION (IP High Court - Case 2023Na11283) The original decision was appealed to the IP High Court, which handed down a ruling on 28 October 2024 upholding the decision of the first instance court. Damages of 15 million KRW (approx. $10,750 USD) were awarded, together with an injunction barring the appellant from using materials bearing Louis Vuitton’s trademarks in the production of bags and wallets. While largely affirming the lower court’s stance, the IP High Court offered clarifications on several points: Commercial Value of Reformed Products: In terms of trademark usage, a “product” refers to an item that, in itself, has exchange value and is capable of being an independent object of commercial transaction. Reformed products such as wallets and bags hold exchange value in themselves. Furthermore, given that the Louis Vuitton trademark is widely known as indicating the origin of the plaintiff’s bags or wallets, the reformed products carry considerable exchange value. Additionally, considering the active resale market for luxury products, reformed products are also likely to be circulated in the second-hand market. Repair vs Reform:  The owner of an item, when it becomes worn or damaged, may utilize a repair service to restore the item to its original appearance or function. For items that have undergone simple repairs, the trademark on the repaired item is not generally perceived as identifying the repair service provider, except in special cases. However, if an old or damaged item is used as a raw material to produce a new item different from the original, the trademark on the new item could be perceived as representing the manufacturer of the new product, rather than the original manufacturer. Considering the products in question, it is reasonable to deduce that the defendant completely dismantled the original product, cut its parts, and recycled the parts as raw materials through processes involving physical/chemical treatment, stitching, attachment of components, and application of trademarks. In comparison to the original item, the reformed product differs significantly in terms of quantity (e.g., two or more new items manufactured from one original item), size, volume, shape, appearance, and function. Therefore, the reformed product is considered a new product, and can be distinguished from a repaired/decorated product where restoring to its former state is feasible. Consumer Confusion & Brand Dilution:  The court emphasized that even in cases where the reformed products are returned to the original owners rather than sold to third parties, the presence of the brand’s trademark on significantly altered items can still lead to consumer confusion. The court highlighted that even if the modifications are requested by the owners, reformed goods bearing the original trademark risk damaging the brand’s reputation by diluting its association with quality and consistency. This underscores that consumer perception remains a critical factor in determining infringement, focusing on the “general consumer” who may encounter the modified goods in secondary or social contexts, potentially mistaking them as authentic brand products. Exhaustion Doctrine:  The court also reiterated and clarified the limitations of the exhaustion doctrine. While brand owners cannot restrict the resale of their products post-purchase, the exhaustion doctrine does not apply when the modifications transform the product’s core characteristics. Given that the defendant’s alterations affected the products' structure and presentation — resulting in entirely new forms like wallets from handbags — the court found these alterations to exceed permissible "repair" and to encroach upon the brand owner’s rights. The appellant criticized the ruling, stating that the legal judgement lacked common sense (Source: News1), and has further appealed the matter to the Supreme Court.   ▒  COMMENTS We will keep a close eye on this issue and report any further updates if and when the case is heard by the Supreme Court. In the meantime, the IP High Court’s decision signals a strong stance against unauthorized brand modification, especially in cases where significant alterations may harm brand integrity or confuse consumers.  Brand owners may find this ruling advantageous for enforcing their rights over products in secondary markets. The decision also serves as a warning to businesses engaged in reformation/upcycling services, indicating that they must consider the degree of alteration and the potential for consumer confusion when handling branded items.   Written by Jonathan MASTERS and Sang-eun SHIN

2024-11-26
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Practice Notes

IP High Court Upholds First Award of Punitive Damages for Willful Patent Infringement

In a late October 2024 ruling, the IP High Court of South Korea upheld the main legal findings of a Busan District Court decision to award punitive damages for willful patent infringement. The case involved alleged infringement of the plaintiff’s patent on a lid for a vacuum cooking pot. The Busan District Court’s decision was noteworthy as it marked the first application of punitive damages since their introduction in a 2019 amendment to Article 128(8) of the Patent Act, which allowed courts to award punitive damages of up to three times the actual damages.   A subsequent amendment, which came into effect in August 2024, has since increased the possible punitive damages cap to five times the actual damages.  Against this backdrop of a pro-patentee legislative push, attention has turned to the courts, which have previously been cautious in awarding punitive damages. The IP High Court’s ruling in this case (no. 2023na11276) may signal a shift to a more assertive approach, aligning with legislative efforts to strengthen patent enforcement in Korea.  ▒  Timing of Infringing Acts  A key question in the case concerned timing: the defendant’s infringing acts spanned both before and after the 2019 amendment, raising the question of whether any of the acts were subject to punitive damages. Supplementary Provisions to the amendment state that the new provision “shall apply from the first violation occurring after this Act takes effect.” Relying on this, the defendant argued that the new punitive damages provisions should not apply because their infringing acts began prior to the amendment, and are thus not a first infringement occurring after the act took effect. The IP High Court upheld the lower court’s decision in rejecting this argument, holding that punitive damages apply to any infringing acts that continued after the amendment took effect on July 9, 2019, regardless of when the infringement first began. The court emphasized that allowing infringers to evade the heightened damages simply because their actions initially began before the law was amended would contradict the legislative intent behind introducing punitive damages, which was to deter infringement and strengthen relief for victims.   ▒  The Willfulness Determination The threshold for applying the punitive damages provision is whether the infringement was willful. In addressing whether the defendant’s infringement was willful, the court conducted a comprehensive assessment of the facts, including the history of the parties' relationship:                                                                                                                                                                                                    ●  The plaintiff and the defendant had initially attempted to negotiate a non-exclusive license for the plaintiff’s patent, but after negotiations broke down, the defendant nonetheless proceeded with sales.   ●  The plaintiff repeatedly contacted the defendant regarding the matter, including issuing a cease-and-desist letter, which the defendant ignored.   ●  The parties had also unsuccessfully attempted mediation through the Korea Fair Trade Mediation Agency.   ●  The defendant filed both an invalidity trial and a scope confirmation trial concerning the plaintiff’s patent, but lost in both cases, including on appeal.                                                               The court concluded that the defendant was plainly aware of the patent and that its ongoing sales, despite explicit warnings and legal defeats, showed clear willfulness. The court also dismissed the defendant’s defense that it was genuinely uncertain about the patent’s validity, noting that this defense was contradicted by the defendant’s own prior conduct. The IP High Court’s analysis on this question brings further clarity on how courts will approach willfulness going forward, and highlights the types of evidence patentees should gather and present to demonstrate willfulness.  ▒  Increased Punitive Damages The court of first instance had awarded punitive damages of 0.5 times the actual damages for the willful infringement that occurred after the amendment. While the IP High Court reduced the overall amount of actual damages, it increased the proportion of punitive damages, awarding damages for the post-amendment period totaling double the actual damages (i.e., actual damages + punitive damages equivalent to 1X the actual damages). Under Article 128(9), courts must consider eight factors in determining punitive damages:   1.  Whether the infringer holds a dominant position;   2.  Whether the infringer was aware the act would cause harm to the patentee;   3.  The scale of such harm to the patentee;   4.  The resulting economic benefits to the infringer;   5.  The frequency and length of the infringing acts;   6.  The criminal sanction for the infringing acts;   7.  The infringer’s financial status; and   8.  The efforts the infringer has made to reduce the harm to the patentee. Applying these factors, the court found:   ●  The defendant, being significantly larger than the plaintiff, held a dominant position (factor 1).   ●  The defendant was on notice of the infringement and failed to take steps to reduce the harm to the plaintiff (factors 2 and 8).    ●  The defendant gained substantial economic benefits and maintained a strong financial position (factors 4 and 7).    ●  The infringement was prolonged, lasting over three years and involving substantial sales during the punitive damages period (factor 5).                                                                                               Although the court did not explicitly weigh the factors or indicate exactly how they influenced the final calculation, it did note that no specific evidence was provided regarding factors such as the exact scale of harm (factor 3) and related criminal penalties (factor 6), which may have weighed against a higher punitive award.  ▒  Toward Strengthened Patent Enforcement  The IP High Court thus not only affirmed the lower court’s main findings on the applicability of punitive damages, but also increased the punitive damages multiplier. Further, throughout its judgment, the court repeatedly emphasized the legislative intent of deterring willful infringement. This judgment may open the door to more frequent and more expansive punitive damage awards from other courts, and suggests that the judiciary is ready to shift away from its passive stance and begin to more actively follow the efforts of the legislature. With the newer amendment now also allowing for quintuple damages for infringing acts occurring after August 24, 2024, this trend bodes well for patentees in Korea.

2024-11-12
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