John M. Moscowitz

John M. Moscowitz’s patent litigation experience, based on available public records, centers on his work for the defense in high-stakes technology disputes. He is listed as defense counsel for Shook, Hardy & Bacon in one tracked case. However, a detailed professional biography, including bar admissions, education, and a comprehensive practice description for an attorney of this name at that firm, could not be verified through publicly available sources as of May 2026.

Moscowitz’s sole tracked appearance is as counsel for defendant Valve Corporation in the patent infringement suit Ironburg Inventions Ltd. v. Valve Corporation. This long-running case involved patents on mechanical components for video game controllers, specifically controllers with paddles on the back. His representation was on the defense side, consistent with the provided data indicating he has only appeared for defendants.

The Ironburg v. Valve litigation was a significant intellectual property dispute involving both district court and Patent Trial and Appeal Board (PTAB) proceedings, followed by multiple appeals to the Federal Circuit. The case ultimately resulted in a jury verdict of willful infringement against Valve in the Western District of Washington, with an initial damages award of over $4 million. The complex litigation also addressed key legal issues regarding IPR estoppel, with aspects of the case being reviewed by the Federal Circuit as recently as 2023. Moscowitz's involvement in this matter places him within a major patent case concerning consumer electronics and mechanical inventions.