Orrick Herrington & Sutcliffe

Orrick Herrington & Sutcliffe is well-known for its strength in patent and trademark litigation, for which it is recommended. Notable practitioners in the office include Alex Chachkes and Joshua Rosenkranz. Rosenkranz is one of the country’s leading appellate practitioners, with a substantial history handling IP-related disputes at the Federal Circuit and US Supreme Court. He currently heads the firm’s appellate practice. Alex Chachkes litigates complex IP matters, with a particular emphasis on patent actions.

Patent case studies show the firm has represented clients such as Gilead. Life sciences IP litigator Irena Royzman joined the firm in 2024.