David T. Okano is an associate in Paul Hastings’ Palo Alto office. His practice focuses on patent litigation in district courts, section 337 investigations at the International Trade Commission, appeals to the Federal Circuit, and post-grant proceedings before the Patent Trial and Appeal Board.
Mr. Okano’s trial experience includes cross-examining lead technical infringement experts and arguing key evidentiary motions. He has also delivered oral arguments in IPR hearings at the PTAB, and second-chaired oral arguments for appeals to the Federal Circuit.
Mr. Okano has taken and defended multi-day depositions of lead technical experts, Rule 30(b)(6) witnesses, and fact witnesses. Mr. Okano has extensive experience preparing appellate briefing at the Federal Circuit, post-trial, claim construction, section 101, and summary judgment briefing in district courts and the ITC, and written submissions to the PTAB.
Mr. Okano previously served as a law clerk to the Honorable Raymond T. Chen of the U.S. Court of Appeals for the Federal Circuit, and practiced at a large intellectual property boutique. While in law school, Mr. Okano interned at the Computer Crime and Intellectual Property Section of the U.S. Department of Justice, and under supervision of attorneys in the Office of the Commonwealth’s Attorney in Lynchburg, Virginia, prosecuted misdemeanors in general district court and misdemeanor appeals in circuit court.
Before practicing law, Mr. Okano gained experience as a systems engineer at a large defense contractor and a consultant at a risk management consulting firm.
Berkheimer and Aatrix En Banc Denial: a Divided Federal Circuit on Alice Step Two
June 04, 2018
No Physical Place, No Regular and Established Place of Business: The Federal Circuit Strikes Down Judge Gilstrap’s Patent Venue Framework
September 25, 2017
Visual Memory LLC v. NVIDIA Corp.: Panel-dependency for § 101 Challenges at the 12(b)(6) Stage
August 23, 2017
Reading the Tea Leaves from the TC Heartland LLC v. Kraft Food Group Brands LLC Oral Argument
March 30, 2017