November 30, 2015 – Zimmer Surgical, Inc. petitioned for inter partes review of four patents owned by Stryker Corporation: U.S. Patent Nos. 6,622,311; 6,481,019; 8,282,234; and 7,752,682. The four patents are generally directed to personal protective systems such as a helmet assembly with an air filtration system for use in clean rooms or in surgical procedures to provide a sterile barrier between the surgical personnel and the patient. The petitions are pending before the Patent Trial and Appeal Board and are captioned: IPR2016-00255; IPR2016-00257; IPR2016-00261; and IPR2016-00265.
By: Rosanna W. Gan