18 Mar 2026
Boies Schiller Flexner Adds Partner John Wittenzellner to Patent Litigation Practice
"Boies Schiller Flexner has hired John Wittenzellner as a partner in its patent litigation practice. He is a registered patent attorney and former semiconductor engineer who will handle high‑stakes patent disputes."
Wittenzellner is a registered patent attorney and a former semiconductor engineer with experience litigating patent disputes for both plaintiffs and defendants. He has secured favorable outcomes, including jury verdicts, in high‑stakes cases involving wireless communications, semiconductor and electronic devices, data management technologies, and online and mobile gaming platforms. He has represented clients before federal courts across the country, the U.S. International Trade Commission, the Federal Circuit, and the Patent Trial and Appeal Board. His legal experience has included roles at both a global law firm with more than 1,000 attorneys and a litigation boutique.
Wittenzellner is the seventh lateral partner focused on patent litigation to join Boies Schiller Flexner in the past two years, underscoring the firm’s continued investment in the practice.