Yongsok Choi


Yongsok focuses his practice on patent litigation and prosecution in the electrical and computing arts, with a particular emphasis on telecommunications, software and e-commerce solutions, electronic memory, and complex networking applications.

A native of Korea, he prosecuted patent applications for the electronics, telecommunications, semiconductor, and software industries, and counseled clients on both the Korean IP system and international patent filing strategies. He also worked as a summer associate at a Tokyo IP firm. While there, Yongsok prosecuted Japanese patent applications, monitored changes in Korean patent law and advised Japanese clients on their implications.

Prior to joining Dinsmore, Yongsok practiced in the Chicago office of Brinks Gilson & Lione. Before practicing in the U.S., he worked as a Korean patent attorney at Kim & Chang in Seoul Korea.

Yongsok spent two years serving in the Korean Army at the Intelligence Department of Army Headquarters.


  • Boston College Law School  (J.D., 2014)
  • Seoul National University  (B.S., cum laude, 2003)
    • Electrical Engineering
    • Merit based scholarship from Department of Electrical Engineering

Bar Admissions

  • Ohio
  • U.S. Patent & Trademark Office
  • Illinois (inactive)

Court Admissions

  • Korean Patent Bar


  • Chicago Bar Association
  • Korean Patent Attorney Association


  • Korean
  • Japanese