Mr Byeong-ok Song > Yoon & Lee > Seoul, South Korea > Lawyer Profile

With a team that is ‘very knowledgeable both in domestic and overseas jurisdictions’, Yoon & Lee is a well-regarded patent prosecution firm, regularly active for both domestic and international clients. The firm is home to experts in the fields of chemistry, pharmaceuticals, mechanics, and cosmetics, among others. The ‘extremely responsive and reliable’ team is especially skilled at handling trademark and design infringement cases. Dong-yol Yoon, managing partner and founder of the firm, has almost four decades of experience navigating the IP landscape, and has a focus on the chemistry and biotech sectors. Sang-yong Lee is in charge of the trademark and design team, while Byeong-ok Song focusses on matters within the mechanical sector. Ji-man Park heads the telecommunications division within the firm and is recommended for IP matters relating to major electronic companies. Other prominent members of the team include Yong-won Lee, who is at the forefront of the standard patent team, and Seong-ki Kim, a US attorney and Korean patent attorney, who joined from Lee & Ko in 2022.