YongJoon William (Bill) Lee

Founder, Managing Attorney

As a lead attorney at Solid State Law, Bill bridges complex legal frameworks with a focus on business growth legal services. He specializes in startup law, assisting founders in building legally sound companies that are poised for long-term success.

In addition to his startup-focused practice, Bill is a seasoned intellectual property attorney with extensive experience in patent preparation and prosecution services across diverse technology sectors. His work has been recognized by Samsung Display, honoring him as one of its top-performing patent practitioners.

Beyond his role in the patent office, Bill serves as a trusted general counsel and strategic advisor to growing companies, providing guidance not only on intellectual property matters but also on litigation, tax, and business strategy, supporting companies from formation through to exit. His experience includes serving as an independent director for a startup and as legal counsel to the Daejeon Global Business Center, granting him a global perspective on market entry, risk management, and long-term scaling.

Education

Benjamin N. Cardozo School of Law — J.D.

Sogang University — B.S., Electronic Engineering

Admissions

New York

District of Columbia

Maryland

Virginia

U.S. District Court for the Southern District of New York

U.S. Patent and Trademark Office (limited recognition)

Email: ywlee@solidslaw.com