Mr. Jootag Yoon is a partner at Shin & Kim whose main practice areas are patents, utility models, designs, trademarks, unfair competition, trade secrets, industrial technology protection, technology, media, and telecommunications (TMT), digital technology, data law, privacy protection, software disputes, copyrights and entertainment, product liability, and bio and healthcare.

Mr. Yoon is an Electronics Engineering major who served as a high court judge at the Intellectual Property Trial Division of the Seoul High Court and a judge at various courts, including the Patent Court and the Seoul Central District Court, from February 2004 to February 2021. During his service, Mr. Yoon handled various intellectual property cases including patents, preliminary injunctions, bankruptcy, rehabilitation, and other civil and criminal cases. In particular, Mr. Yoon handled, as a judge, intellectual property cases (claims for damages, preliminary injunctions, and appeals) in relation to patents, trademarks, designs, trade secrets, and copyrights at the Patent Court, Seoul High Court, and Seoul Central District Court. He also lectured on intellectual property law at the Judicial Research and Training Institute, Seoul Bar Association, and Korean Patent Attorneys Association. He has presented on issues in intellectual property law, such as the compensation for employee inventions, at the Supreme Court Special Practice Study Group and the Patent Court Public Seminar and published and co-authored articles and legal commentaries on intellectual property law.

Since joining Shin & Kim, Mr. Yoon has represented clients and won in multiple cases in relation to patent infringement, trade secret infringement (in civil and criminal disputes), non-compete agreements, copyright infringement, trademark and design infringement, and product liability, in several of which he successfully obtained a remand decision from the Supreme Court. Also, he has advised his clients on various issues in his major practice areas, including Freedom-to-Operate (FTO) analysis.

Mr. Yoon graduated from Seoul National University, Department of Electronics Engineering (currently Department of Electrical and Computer Engineering) and completed the 33rd class of the Judicial Research and Training Institute. Mr. Yoon served as a judge and high court judge from February 2004 to February 2021.

• Represented a patentee in the 2nd and 3rd trials in patent infringement litigation in relation to a screen golf system
• Represented a major Korean telecommunications company in a patent infringement litigation in relation to a Korean input method and device for a mobile phone
• Represented a major Korean telecommunications company in a patent infringement litigation in relation to an electronic receipt issuance method
• Represented a major Korean steel company in the 2nd and 3rd trials in patent invalidation litigation in relation to aluminum alloy
• Represented a major Korean display manufacturer in patent infringement litigation in relation to display device manufacturing methods and manufacturing devices
• Represented a major Korean security solution company in patent infringement litigation in relation to network security methods and systems
• Represented affiliates of a major Korean conglomerate in patent infringement litigation in relation to autonomous driving
• Advised client by analyzing approximately 30 patent FTOs in the process of establishment of a joint venture for manufacturing biodegradable plastics
• Represented a major Korean display manufacturer in the 2nd and 3rd trials of a criminal case involving infringement of trade secrets in relation to digital displays
• Represented a Korean conglomerate in multiple trade secret infringement cases, including criminal cases, preliminary injunction cases, and damages claims in relation to semiconductor cleaning equipment
• Represented a foreign company in a claim for preliminary injunction against infringement of trade secrets in relation to construction methods and systems for high-rise concrete structures
• Represented a Korean conglomerate in multiple disputes over non-compete agreements between the Korean conglomerate and semiconductor designers
• Represented a foreign company in a trademark infringement action
• Represented a Korean conglomerate in a product liability claim in relation to a battery fire
• Represented a foreign company in a product liability claim in relation to a vehicle fire
• Represented a Korean conglomerate in a dispute over the development of a carbon trading software platform
• Represented an insurance company in a dispute over the development of a next-generation software system of an insurance company
• Represented a Korean conglomerate in a dispute over R&D document management software