Sungyong (David) In

Sungyong is a registered patent attorney in the firm's Intellectual Property practice.
Sungyong (David) In, Attorney, Washington DC at Arent Fox

Sungyong has extensive experience in telecommunications, software, semiconductor, and electrical technologies.

Client Work

Sungyong’s practice is focused on counseling clients and prosecuting patent applications in the electrical fields, including telecommunications, software, computer hardware, and semiconductor device manufacturing. Sungyong advises clients regarding the protection of their intellectual property, including the preparation of patentability, infringement and validity opinions, and due diligence studies. Sungyong also has substantial experience in post-grant review proceedings, including preparing reexamination requests and defending patents undergoing ex parte and inter partes re-examination, as well as drafting and reviewing licensing agreements including technology transfer and patent licensing agreements.

Previous Work

Prior to joining Arent Fox, Sungyong was an associate at a large international firm, with his practice focusing on patent prosecution, patent transaction, the preparation of patentability, infringement and validity opinions, due diligence studies, re-examination (both ex parte and inter partes re-examination proceedings), and post-grant proceedings.

While in law school, he was a law clerk at the US International Trade Commission's Office of Unfair Import Investigations.

Before becoming a patent attorney, Sungyong spent more than 10 years in various engineering positions at multinational corporations. He held various positions including Systems Engineer, Research and Development Engineer, Member Technical Staff, and Program/Project Manager in the automotive, digital communications, and semiconductor industries. 

Professional Activities

Sungyong is a member of the American Bar Association and the Korean-American Scientists and Engineers Association.

  • Bar & Court Admissions
    • District of Columbia Bar
    • Massachusetts Bar
    • New York Bar
    • US Patent and Trademark Office Bar
    • US Court of Appeals, Federal Circuit
    • US Court of Appeals for Veterans Claims
  • Education
    University of New Hampshire School of Law
    cum laude
    Johns Hopkins University
    Computer Science
    University of Michigan
    Electrical Engineering
    University of Michigan
    Electrical Engineering, cum laude
    University of Michigan