David C. Hanson is an Intellectual Property attorney with experience in many fields. Early in his career, he served as a research engineer for Harbison-Walker Refractories Company and as a lieutenant in the U.S. Army Ordinance Corps before obtaining his law degree. For more than three decades, Dave has litigated patent, copyright, and trade secret matters. His litigation experience extends from initial case evaluation to appeal and his subject material has been diverse: machine-control electronics, power electronics, ignitions systems, computer programming, polymer chemistry, chemical processes, alloy metallurgy, metallurgical processes, fabrication processes, and heavy-construction equipment among others.
Dave is also involved in patent prosecution, patent licensing, and patent clearance opinion writing. He maintains a particular interest in patent claim construction law and has authored a number of articles on IP topics.
Registered Patent Attorney, U.S. Patent and Trademark Office
U.S. Court of Appeals Federal Circuit
U.S. Court of Appeals 3rd Circuit
U.S. Court of Appeals 5th Circuit
U.S. District Court Western District of Pennsylvania
U.S. District Court Eastern District of Pennsylvania
U.S. Supreme Court, 1977
U.S. Court of Federal Claims
Duquesne University School of Law, Pittsburgh, Pennsylvania, 1967 J.D.
University of Illinois, Urbana, Illinois, 1960 B.S.
Major: Ceramic Engineering
Professional Associations and Memberships
Allegheny County Bar Association
Pennsylvania Bar Association
Federal Bar Association
American Intellectual Property Law Association
Pittsburgh Intellectual Property Law Association, President 1991-1992
Past Employment Positions
United States Army, Lieutenant, Ordnance Corps, 1960-1962
Harbison-Walker Refractories Company, research engineer