Wonil Kim Partner
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  • TEL 82 2 6003 7511
  • FAX 82 2 6003 7029
  • E-MAIL
Wonil Kim is a partner at Yoon & Yang LLC. His main areas of practice include intellectual property, anti-trust, broadcasting, information & telecommunications, and bioindustry. Mr. Kim has lectured as a professor at the Patent Training Institute of the Seoul Bar Association and has served as a member of the Competition Policy Advisory Board for the Korea Fair Trade Commission. Mr. Kim currently is an arbitrator for international arbitrations at the Korean Commercial Arbitration Board. After graduating from Seoul National University College of Law, he received his LL.M. from University of Washington School of Law.


  • 2003-present Yoon & Yang LLC
  • 2020-present Commissioner, Intellectual Property Training Institute Steering Committee, Korean Bar Association
  • 2017-present Sole Arbitrator, International Matters, Korean Commercial Arbitration Board
  • 2017-present Legal Advisor, Korea Drug Development Fund (formerly Investment Deliberation, Korea Drug Development Fund)
  • 2016-present Civil Affairs Mediator, Patent Court
  • 2016-present Director, Korea Patent Attorney Association
  • 2015-present Commissioner, Internet Law System Forum, Korea Internet & Security Agency
  • 2014-present Legal Advisor, Personal Information Protection Commission
  • 2012-present Advisor, Legal Advisory Panel on International Investment and Intellectual Property Rights, Ministry of Justice
  • 2009-present Director, Korea Industrial Property Law Association
  • 2015-21 Vice Chairperson, Korea Intellectual Property Lawyers Association
  • 2020-21 Vice Chairman, Korean Arbitrators Association
  • 2011-13 Investment Deliberation Commissioner, Korea Drug Development Fund (formerly Investment Deliberation, Korea Drug Development Fund)
  • 2008-09 Outside Director, Ilsung Pharmaceuticals Co., Ltd.
  • 2005-07 Member of Competition Policy Advisory Committee, Korea Fair Trade Commission
  • 2004-07 Professor, Patent Law Research and Study Center, Seoul Bar Association
  • 1998-03 Yoon & Partners
  • 1996-98 Shimin Law Firm, Seoul, Korea
  • 1994-96 Judge, Incheon District Court


  • 2002 University of Washington School of Law, LL.M.
  • 1994 Judicial Research and Training Institute
  • 1988 Seoul National University College of Law, LL.B.

Representative Matters

  • Advised on KFTC’s patent abuse and antitrust investigation against a manufacturer of semiconductors for mobile communications
  • Represented a client in a patent dispute over multivalent pneumonia vaccination
  • Represented a client in a claim for compensation for employee invention related to 3D NAND flash memory manufacture process


  • Leading Individual, Intellectual Property, Chambers and Partners Asia-Pacific (2020-2022)
  • Leading Individual, Intellectual Property, Chambers and Partners Global (2021-2022)
  • Leading Individual, Intellectual Property, Legal500 Asia-Pacific (2016, 2018)
  • Distinguished Practitioner, Intellectual Property, asialaw (2013-2018, 2020-2023)
  • Korea Super 30 Lawyers, Asian Legal Business (2021, 2022)
  • Patent Star Trade Mark Star, MIP IP Stars (2019, 2022)
  • IP Star, MIP World IP Survey (2017)


  • Note on Right of Publicity, Bup Jo (2003)
  • Reinforced Regulations on Spam Mail - Asialaw (2005. 4.)
  • New Weight Class in Korea - The Securities-related Class Action Act, Asian Counsel (2005. 8.)
  • Overview and Trends of Intellectual Property Law and Competition Law in Korea - The Asia Pacific Antitrust Review 2007 (2007)
  • Korea Chapter, Getting The Deal Through-Intellectual Property & Antitrust (Co-author, 2009, 2013, 2014)
  • The Technology, Media and Telecommunications Review - Law Business Research Ltd.( Co-author, 2010, 2011, 2012, 2013)
  • IP & TMT chapter, IFLR Asialaw Korea Annual Review 2013
  • International Briefings, Managing Intellectual Property (October, 2013)
  • Korea Chapter, LexisNexis Intellectual Property Law Guide 2013/14 (Co-author, 2014)
  • Regulation of personal information in new fields - Asian-Mena Counsel: IP TMT Special report (Co-author, 2016.1.)