Kirk A. Sigmon calls on years of legal, technical, and business experience to counsel clients at all stages of invention, patent prosecution, intellectual property enforcement, and litigation. His cases have involved a broad range of technologies, including computer networking, cellular communications, video gaming, virtual reality, machine learning, blockchain technologies, aerospace flight systems, video encoding, petroleum engineering, optoelectronics, data storage and magnetics, agronomy, and pharmaceuticals.

Mr. Sigmon has successfully represented both plaintiffs and defendants in multimillion-dollar patent infringement trials in federal court. He has counseled Fortune 500 companies on topics including patent portfolio management and intellectual property enforcement.

Mr. Sigmon is a frequent contributor to the blog Patent Arcade, where he writes on video game intellectual property law.

Before joining Banner & Witcoff, in addition to his intellectual property practice, Mr. Sigmon worked with clients in response to Department of Justice, Consumer Financial Protection Bureau, and Securities and Exchange Commission investigations that involved technical issues such as data security. He also formerly worked at a law firm in Tokyo and has experience with Japanese and Korean intellectual property issues. He is fluent in conversational Japanese.

Mr. Sigmon has an extensive pro bono practice. He has successfully represented a Guantanamo Bay detainee in military proceedings, represented victims of sexual violence in U-Visa proceedings, and routinely prepares testamentary documents for indigent senior citizens.

Mr. Sigmon earned his J.D. from the Cornell Law School. Mr. Sigmon also has an M.B.A. from Temple University, a B.S.E.E. from Arizona State University, and a B.A. in Japanese and a B.A. in English from Wake Forest University.