Twitter Logo Youtube Circle Icon LinkedIn Icon

South Korea > Intellectual property > Patents and trade mark attorneys > Law firm and leading lawyer rankings


Who Represents Who

Find out which law firms are representing which Patents and trade mark attorneys clients in South Korea using The Legal 500's new comprehensive database of law firm/client relationships. Instantly search over 925,000 relationships, including over 83,000 Fortune 500, 46,000 FTSE350 and 13,000 DAX 30 relationships globally. Access is free for in-house lawyers, and by subscription for law firms. For more information, contact


The ‘overall level of service is outstanding’ at Kim & Chang, where the team is ‘adept at providing strategies to strengthen a patent portfolio to ensure maximum patent protection for products’. Senior patent attorney Young Kim’s highlights included representing Wyeth in blocking the launch of a generic product by obtaining a sales stay under the patent linkage system from the Ministry of Food & Drug Safety, and successfully acting for F. Hoffmann-La Roche in appealing an earlier invalidity decision relating to a patent covering a biological product. Stand out individuals in the sizeable team include foreign attorney Alex Hyon Cho, who provides ‘very practical advice’ on trade mark and design issues, ‘exceptional’ foreign attorney In Hwan Kim and patent attorney Sang Young Lee. Man Gi Paik leads the patent prosecution practice.

Bae, Kim & Lee LLC’s IP prosecution team represents multinationals from a wide range of technical fields, including engineering, electronics, manufacturing, and pharmaceutical. As well as handling the full range of registration work, including validity and scope proceedings before the Korean Intellectual Property Office (KIPO), the team also assists with patent, trade mark and copyright litigation. Patent attorney Catherine Eunkyeong Lee is managing partner of the IP group and leads the chemical, biotechnology and pharmaceutical team. Other names to note include Hoo Dong Lee and Jihyun Kim. Won Hee Cho left the firm.

Lee International IP & Law Group’s substantial team includes patent attorneys, trade mark attorneys, attorneys-at-law, engineers and scientists. The team advised on numerous potential patent, trade mark and copyright infringements, including assisting Lotteria with a review of promotional materials regarding its Pop brands and Hello Kitty, and acting for Wacker Chemical in a patent infringement dispute. Kyoung-Joo Park, who is a patent attorney and an attorney-at-law, is the main contact.

Lee & Ko’s ‘very solution-oriented’ practice is headed by Seong-Ki Kim, who specialises in the field of chemical engineering. Kim and Seong Tahk Ahn, who leads the electrical and mechanical patent prosecution team, advised Universal Display on its acquisition of 1,700 organic light-emitting diode-related patents from BASF and Fujifilm. In the trade mark space, Vera Eun Woo Lee assists multiple Hyundai companies with trade mark registration and management issues. Other names to note are Hui Jin Yang, who leads on pharmaceutical and chemical work, ‘very impressive’ foreign attorney Kevin Lee, who joined from Kim & Chang, and patent attorney Ji- Woong Park, who ‘has great technical knowledge and the ability to instantly spot the crucial issues’.

Y.P. Lee, Mock & Partners’ practice is divided into three specialist teams of patent attorneys, who cover pharmaceutical, mechanics and electronics, and the firm is particularly recommended for its telecoms work. It also has a smaller division that handles trade marks and copyrights. Founding partner Youngpil Lee is the main contact.

Yoon & Leeprovides consistent quality and responsiveness in a large volume of cases’, and is ‘experienced in several technical fields’. As well as advising major Korean electronics companies on global IP issues, it also has a good reputation for assisting Japanese electronics companies with IP work in Korea. Another area of strength is the pharmaceutical and cosmetics sector, and the team was successful in a case before the patent court relating to a patent application for a hair-setting agent with improved durability. Founding partner Dong-yol Yoon, who ‘leads the patent group effectively and efficiently’, ‘has a deep knowledge in the chemical field and is highly experienced in the prosecution of patents before the Korean Patent Office’. Another name to note is Ji-man Park, who has ‘excellent legal and technical knowledge’ of telecoms.

Central Intellectual Property & Law is a specialist IP boutique that handles the full range of non-contentious patent and trade mark work. Hoon Chang is president of the firm.

Cho & Partners is best known for handling anti-counterfeiting matters for major international companies such as Apple and Walmart, and the practice is highly regarded for its work for luxury fashion brands. The active prosecution practice has a focus on trade marks. Name partner Tae-Yeon Cho and Ik-Hyun Seo lead the firm.

Y.S. Chang & Associates is one of the oldest IP firms in South Korea. The firm provides a full range of services regarding patents, trade marks, domain names, designs, copyrights and licenses. Bong-Sig Song is the managing partner.

Yoon & Yang LLC was active on a number of patent invalidation actions in 2016. The practice was strongly enhanced by the hire of Dong Gyou Choi, who previously held the position of commissioner at the KIPO. Wonil Kim heads the team.

You Me Patent & Law Firm enjoys a good reputation for patent and trade mark prosecution work, and the firm acts for multinationals, including Fortune 500 companies, small entities, and individual inventors alike. Managing partners Won-Ho Kim and Joo-Hyun Song are the main contacts.

Yulchon has particular expertise in the healthcare sector where patent attorneys Kyung Ae Yoon and Hyun Sook Han are registered pharmacists; the duo were part of the team that represented Samsung Bioepis before the Korean Intellectual Property Trial and Appeal Board in invalidating a method-of-use patent sold by AbbVie Biotechnology. Other names to note are Seung Jo Kim, Jin Hyung Lee and Myung Hoon Kim.

Interview with...

Law firm partners and practice heads explain how their firms are adapting to clients' changing needs

International comparative guides

Giving the in-house community greater insight to the law and regulations in different jurisdictions.

Select Practice Area

Dinner with GC -
Korea 2018

  • China and Hong Kong GC Powerlist

    In May, The Legal 500 and GC Magazine added another country to the list of destinations for their exclusive Dinner with GC series, as South Korea’s elite in-house counsel came together at Mugunghwa in Seoul, for a closed-door discussion on the realities of the role.

    Dinner with GC - Korea 2018

Press releases

The latest news direct from law firms. If you would like to submit press releases for your firm, send an email request to

Legal Developments in South Korea

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to

Press Releases worldwide

The latest news direct from law firms. If you would like to submit press releases for your firm, send an email request to