Intellectual property: local firms

Yoon & Lee

Yoon & Lee specialises in IP with a strong focus on patents and trade marks, supported by a substantial team of patent attorneys and technical experts. The firm is notably effective in patent and trademark prosecution due to its deep technical expertise and experience. Founded by managing partner Dong-yol Yoon, who brings over 30 years of insight into IP processes in Korea, the firm is well-positioned for complex matters. Byeong-ok Song leads the mechatronics team, focusing on optics and electronics. Ji-man Park, head of telecoms, offers expertise in semiconductors and nuclear engineering. Yong-won Lee leads the standard essential patent team with a 5G focus, while Sang-yong Lee oversees trade mark and design matters, including litigation and defence.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

‘Everyone at Yoon & Lee provides great assistance and always gives prompt and comprehensive replies. They have a deep knowledge of the law and practice and are able to deliver reliable opinions and solutions to problems.’
‘Yoon & Lee is a prominent full-service Korean intellectual property firm, uniquely with a leading team of patent attorneys, trade mark attorneys, lawyers, providing a complete IP service to clients.'
'Yoon & Lee's team is diverse and possesses extensive knowledge across various domains. The team members are highly educated and can quickly understand new ideas and concepts, transforming them into comprehensive written documentation.’
‘In relation to Yoon & Lee, we deal with the Telecommunications Team and the Standard Patent Team. Both teams are very strong in terms of technical ability to understand the invention by having technical experts in their teams. They are quick to respond to any issues and work actively to resolve any problems.’
‘Ji-man Park and Yong-won Lee both have much experience in patent prosecution and also very strong technical knowledge of their subject areas compared with their contemporaries. They are also excellent communicators for explaining and presenting issues to the client and have excellent ability to find solutions to overcome rejections by patent offices.'
'Ki-won Na is very efficient and has excellent ability in patent drafting, and Seong-hee Lee has an outstanding ability to understand the invention and recognise its areas of patentability. These individuals handle their cases in the most professional manner, and clients can have confidence that they will receive an excellent service for the protection of their interests.’
‘Yoon & Lee International Patent & Law Firm always responds to our inquiries in a timely manner and provides clients with professional analysis to help them adjust their patent filing strategy.’
‘Byeong-ok Song leads his team effectively and professionally. His team has continuously offered IP services optimised for the benefit of clients.’

Key clients

Samsung Electronics
Amore Pacific
Naraenano-Tech Co. Ltd.
Naeilhae Co. Ltd.
Wavelink Co. Ltd.
KMDP Co. Ltd.
Handu Korea Co., Ltd.
Trust & Communication Co., Ltd.
Hon-ik Group
Gachon University
Security Zone, Co. Ltd.
CardCam Co., Ltd.
Bizmarvel Co., Ltd.
Pelsonic Co., Ltd.
Four-S System
Shakad Co., Ltd.
Exipion Inc.
2bIS Co., Ltd.
Morechem Co., Ltd.
Vriping
Planbe Inc.
Korea Information Technology Research Institute
ENDCS Co., Ltd.
NMC Co., Ltd.
Cosmecca Korea Co., Ltd.

Work highlights

Obtained a patent of a suitable scope for a long-term client, AmorePacific Corporation, by producing arguments and amendments to overcome the rejections from the Examiner.
Protection against possible infringement litigation when Planbe Inc. received a warning letter from a competitor arguing that it had infringed the competitor’s patents.

Lawyers

Hall of Fame: PATMA

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.