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Lee & Ko Attorneys Keum Nang Park of the Healthcare Group and Miji Lee of the Antitrust & Competition Group have been named to Benchmark Litigation Asia-Pacific’s ‘Top 100 Women in Litigation 2026’ in recognition of their outstanding achievements in healthcare-related patent and regulatory disputes, as well as major competition law matters.

Ms. Park serves as Co-Head of Lee & Ko’s Healthcare Group, advising clients on intellectual property matters—including pharmaceutical and biotechnology patents—as well as a broad range of regulatory matters involving the Ministry of Health and Welfare, the Ministry of Food and Drug Safety, and the Ministry of Environment. She brings deep and wide-ranging expertise across the healthcare industry, including pharmaceuticals, medical devices, cosmetics, food, dietary supplements and household chemical products. Ms. Park was named to this year’s list in recognition of her success in defending market exclusivity on behalf of the patent holder of a world-renowned cardiovascular blockbuster drug, prevailing in more than 100 patent suits brought by numerous generic manufacturers. Her selection also reflects her achievements in protecting patent rights in litigation involving a widely used blockbuster biologic for chronic inflammatory disease and a prominent blockbuster biologic for ophthalmic disease.

Ms. Lee has extensive experience in fair trade law, having represented Korean and multinational companies before the Korea Fair Trade Commission and the courts in numerous matters involving cartels, abuse of market dominance, unfair trade practices and unfair support activities. She is also highly experienced in domestic and cross-border merger filings. Recently, she has acted for shipping companies, major platform operators and other Korean and international clients in a series of appeal proceedings challenging significant KFTC dispositions. Ms. Lee was named to this year’s list as a respected female litigator who represents her clients’ interests with unwavering commitment at every stage, from KFTC investigations and hearings through to follow-on litigation.

Benchmark Litigation, published by Delinian, formerly Euromoney, is a globally renowned publication focusing on dispute resolution and litigation. Its annual ‘Top 100 Women in Litigation’ list recognizes 100 leading female litigators in the Asia-Pacific region based on months of in-depth research and analysis.

Lee & Ko has been recognized as a top-tier law firm in Managing IP’s 2026 IP Stars rankings across several key categories, including Trademark Disputes, Patent Disputes, Copyright & Related Rights, and IP Transactions. Of particular note, the firm has maintained the highest ranking in IP Transactions for six consecutive years since the category was first introduced, further underscoring its exceptional depth of expertise in this specialized area.

In the individual rankings, nine Lee & Ko attorneys and patent attorneys were recognized as IP Stars, Rising Stars, and Notable Practitioners, reflecting their distinguished expertise and achievements in the intellectual property field.

 
 Patent Stars: Un Ho Kim, Keum Nang Park, Hwan Sung Park
 Trademark Star: Vera Eun Woo Lee
 Rising Stars: Min Soo Kim, Min Wook Kim, Sung Hoon Kim

Lee & Ko’s IP Practice Group draws on its extensive international network to provide clients with sophisticated legal services in IP-related disputes and advisory matters across the United States, Europe, Japan and other major jurisdictions. Combining a deep understanding of both technology and law, the Group consistently delivers strategic and commercially effective solutions in complex IP matters.

A recent example of the Group’s litigation capabilities is its successful defense of Samsung Heavy Industries in a patent infringement action and related invalidation proceedings initiated by a Canadian company in connection with a floating LNG project involving Samsung Heavy Industries and Cedar LNG. The favorable outcome helped the project proceed without legal impediment.

The Group also successfully defended Korean semiconductor company Eugene Technology in a patent infringement action brought by a Japanese competitor, while pursuing a robust invalidation strategy that further reinforced the firm’s strength in semiconductor-related patent disputes. In addition, the Group’s active involvement in cross-border trade secret disputes continues to enhance its reputation for global competitiveness in high-stakes IP matters.

Managing Intellectual Property, also known as Managing IP, is a leading international publication in the field of intellectual property. Each year, it publishes the IP Stars rankings based on surveys and interviews with IP professionals worldwide, identifying leading law firms by jurisdiction and practice area.

Lee & Ko has once again demonstrated its market-leading capabilities across the full spectrum of patent practice in the IAM Patent 1000 2026 rankings. The firm received the highest band ranking of Gold in both Litigation and Prosecution, and was also recognized as Highly Recommended in Transactions and Recommended in Trade Secrets. This marks the firm’s 12th consecutive year in the Gold band for Litigation and its fourth consecutive year as a Highly Recommended firm for Transactions.

Of particular note, 11 Lee & Ko attorneys and patent attorneys were named as Recommended Individuals across Litigation, Prosecution, Transactions and Trade Secrets, reflecting their outstanding expertise, technical sophistication and market-leading capabilities across all key areas of patent practice.

 
  Litigation: Un Ho Kim, Hayoun Chun, Hwan Sung Park, Hyeon Gil Ryoo, John Kim, Keum Nang Park, Boo Gyu Kwak, Yong Sup Kim
  Prosecution: Hyeon Gil Ryoo, Sungsoo (Sean) Hwang
  Transactions: Hayoun Chun, Yong Jin Cho
  Trade Secrets: Hong Seon Kim

Lee & Ko’s IP Practice Group provides sophisticated legal services across the full life cycle of patent matters, from patent prosecution and portfolio strategy to high-stakes litigation, technology transactions and trade secret disputes. Drawing on its extensive international network and deep understanding of both technology and law, the Group advises clients in Korea and across major jurisdictions, including the United States, Europe and Japan, delivering strategic and commercially effective solutions in complex cross-border IP matters.

A recent example of the Group’s litigation capabilities is its successful defense of Samsung Heavy Industries in a patent infringement action and related invalidation proceedings initiated by a Canadian company in connection with a floating LNG project involving Samsung Heavy Industries and Cedar LNG. The favorable outcome helped the project proceed without legal impediment.
The Group also successfully defended Korean semiconductor company Eugene Technology in a patent infringement action brought by a Japanese competitor, while pursuing a robust invalidation strategy that further reinforced the firm’s strength in semiconductor-related patent disputes. In addition, the Group’s active involvement in cross-border trade secret disputes continues to enhance its reputation for global competitiveness in high-stakes IP matters.

IAM is a leading global patent publication that conducts extensive research each year, including submissions, surveys and interviews with patent professionals, law firms and clients around the world. Based on this research, IAM identifies and ranks leading law firms and practitioners in the patent field by jurisdiction and practice area.

Lee & Ko has been ranked as a Tier 1 law firm in Korea in nine practice areas by ‘Benchmark Litigation Asia-Pacific 2026’, a leading publication focusing on dispute resolution and litigation. 

Notably, Lee & Ko was also recognized as a Recommended Firm in the newly introduced Government and Regulatory category, further demonstrating the firm’s exceptional capabilities and competitiveness across a broad range of dispute resolution and regulatory matters. 


 Commercial and Transactions  
 Competition/Antitrust 
 Construction 
 Insolvency 
 Intellectual Property 
 Labor and Employment 
 Product Liability and Recall 
 Tax 
 White Collar Crime 

In addition, 54 Lee & Ko attorneys were selected as either ‘Litigation Stars’ or ‘Future Stars’ for their outstanding achievements in their respective fields.


- Litigation Stars
 Competition/Antitrust: Jangwoo Park, Jeong-Ho Sun, Pyoung Keun Song, Miji Lee, Hwan Jeong, Suruyn Kim
 Commercial and Transactions: Won Seok Ko, Jae Heon Park, Dajoo Jung, Jin Soo Han, Chang Ho Seong, Kiri Yi
 Construction: Myung Jong Kim, Seon Tae Kim, Chanik Jang, Yang Rak Kim, Jae Sung Yoo
 Government and Regulatory: Taeyop Lee, Kwangbae Park
 Intellectual Property: Un Ho Kim, Keum Nang Park, Hayoun Chun, Heon Lee
 International Arbitration: Sang Hoon Han, Eun Young Park
 Insolvency: Wan Shik Lee, Jung Hyun Lee, Jiwoong Lim
 Labor and Employment: Young Jin Kim, Hyunseok Song, Sang Hoon Lee, Chang Soo Jin
 Tax: Tom Kwon, Sung Hwan Kim, Ok Hyun Ma, Kyung Tae Kim, Steve Minhoo Kim, Jung Ho Ryu
 White Collar Crime: Jae Deog Bae, Jin So, Taeyop Lee, Younsub Jang, Jangwoo Park

- Future Stars
 Competition/Antitrust: Byong Ki Chung
 Construction: Gangcheol Chu, Janghee Yoon, Joo Hye Hong
 Intellectual Property: Jaewoo Kwak, Hyeon Gil Ryoo
 International Arbitration: Grace Yoon
 Labor and Employment: William Kim, Se young Kang, Yong Su Oh
 Product Liability and Recall: Dajoo Jung, Soo Yeon Oh
 White Collar Crime: Ki Jung Sung, Kyeong-seop Yoon

Benchmark Litigation conducts its annual rankings based on in-depth analysis of law firm submissions, as well as interviews with legal practitioners, clients, and litigation experts.
 

On March 25, 2026, Lee & Ko hosted a seminar on ‘Strategic Approaches to Global Technology Dispute Risk and K-Discovery’.

The three-session seminar began with a welcome address by Mr. Un Ho Kim and was moderated by Ms. Hyunjin Koh.

In the first session, Mr. Hankil D. Kang presented “Strategies for Responding to U.S. IP Litigation,” covering an overview of U.S. litigation, practical guidance on handling complaints and discovery, as well as an in-depth discussion of investigation procedures at the International Trade Commission (ITC).

In the second session, Mr. Hayoun Chun discussed “Strategies for Utilizing and Responding to UPC Litigation,” introducing strategic approaches for companies to leverage the UPC, along with various case examples in detail.

In the final session, Mr. Jaewoo Kwak addressed “Responding to Risks Related to K-Discovery and ACP,” analyzing a range of practical issues that companies may face and proposing specific response strategies.

Lee & Ko’s IP & Technology Group handles not only traditional intellectual property matters; such as patents, trademarks, copyrights, trade secrets, and unfair competition, but also disputes and advisory work related to advanced technologies including AI, data, semiconductors, and healthcare. The group has also accumulated extensive experience in cross-border litigation and international arbitration across various sectors. In particular, it has developed deep expertise over many years in discovery practice and is well-positioned to provide one-stop solutions for matters involving K-Discovery.

Lee & Ko has been recognized once again in the 2026 Chambers Global Guide, securing Band 1 rankings in six practice areas and confirming its top-tier law firm status. As for the individual rankings, 37 attorneys of Lee & Ko have been recognized as leading lawyers for their remarkable performance in their respective practice areas.


 Banking & Finance  
 Capital Markets  
 Corporate/M&A  
 Intellectual Property 
 International & cross Border Capabilities: South Korean Firms
 International Trade 


 Banking & Finance: Yeo Kyoon Yoon, Woo Young Jung, Yong-Jae Chang, Myoung Chul Kwak, Dong Seok Woo
 Capital Markets: Hyunjoo Oh, Seunga Hyun, Jun Woo Cho 
 Capital Markets: Securitisation: Jin Hong Kwon
 Corporate/M&A: Sanggon Kim, Ho Joon Moon, Hyeong Gun Lee, Yong Joon Yoon, Daehoon Koo
 Dispute Resolution: Arbitration: Zachary Sharpe, Sanghoon Han, Grace Yoon
 Dispute Resolution: Litigation: Pyoung Keun Song, Dajoo Jung, Seon Tae Kim, Jae Heon Park
 IP: Un Ho Kim, Keum Nang Park, Hyeon Gil Ryoo, Vera Eun Woo Lee, Hankil D. Kang, Hwansung Park, Jaewoo Kwak, Hayoun Chun
 International Trade: Kichang Chung, Hyunsoo Joo, Young Gee Park, Young Jae Cho, Heysoo Kim 
 North Korea - general business law: Hyung Sub Lim (Foreign Expertise based abroad in South Korea)


Chambers Global Guide is a law firm evaluation publication released by Chambers and Partners, a leading global legal publisher based in England, which selects top law firms and top lawyers in the Asia-Pacific region each year based on a comprehensive analysis of data submitted by law firms, interviews with partner lawyers and clients, and recently accomplished work.