Mr. Seok Young LEE is a partner at D&A LLC. His practice is primarily focused on Intellectual Property, Data Security, and Artificial Intelligence.

Mr. Lee is an engineer-turned-lawyer with a proven track record of successfully handling complex technology disputes at a leading intellectual property law firm.

By accurately identifying the core technologies in machinery, electronics, telecommunications, and computer engineering, Mr. Lee demonstrates unparalleled expertise in patent infringement and trade secret misappropriation cases. In particular, he has extensive experience handling technology disputes, employee mobility matters, and trade secret misappropriation issues for small and medium-sized enterprises. By seamlessly integrating technical issues with legal principles, he provides meticulous advocacy and delivers optimal legal solutions tailored to his clients' needs.

In addition, Mr. Lee has substantial experience handling disputes involving scientific and technological issues, including damage claims arising from the Pohang earthquake and product liability disputes involving industrial equipment.

Bar Admissions

• Admitted to Patent Bar, Korea (2018)
• Admitted to Bar, Korea (2017)

Education

• School of Law, Chung-Ang University (JD, 2017)
• Seoul National University (MS in Electrical and Computer Engineering, 2010)
• Seoul National University (BS in Electrical and Computer Engineering, 2008)
• Dongcheon High School (2002)

Significant Accomplishments

• D&A LLC (2026-Present)
• Partner, DARAE Law (2019-2025)
• Attorney, Choi & Shin Law Office (2018)
• Attorney, JeongYul LLC (2017)
• Admitted to Bar, Korea (2017)
• Senior Researcher, System Semiconductor Research Institute, LG Electronics (2012-2014)

Professional Activities and Experience

• |N|[Patent Disputes]
• Represented telecommunications company K in a patent infringement action involving telephone service technology
• Represented home appliance manufacturer H in a patent invalidation proceeding involving an automatic wet-mop cleaning device
• Represented a semiconductor testing equipment manufacturer in an employee-invention compensation claim
• Represented numerous technology companies in patent infringement actions, patent invalidation proceedings, and employee-invention compensation claims
• |N|[Trade Secret Misappropriation and Post-Employment Disputes]
• Represented defendants in a case involving the misappropriation of national core semiconductor process technology from major corporation S
• Represented defendants in a case involving the misappropriation of trade secrets from a semiconductor materials company
• Represented a former startup employee in a case involving the misappropriation of deep learning source code trade secrets
• Handled numerous technology misappropriation disputes and non-compete claims involving small and mid-sized enterprises and their former employees
• |N|[Other General Civil and Criminal Matters]
• Represented members of the Daegu Suseong Beomeo Regional Housing Cooperative in a claim seeking the return of paid-in contributions
• Handled litigation involving a claim for conversion to ownership of a private rental apartment complex in Hannam-dong

• A Study on the Criteria for Judging Unfair Competition and Administrative Investigations (Co-authored, 2018)