Expert opinions on claim construction, infringement contentions, inter-partes review. Deposed six times. Drafted rebuttals to opposing expert reports. Provided technical tutorial to judge.-- 40+ years of experience in development, market introduction of engineering intensive (hardware, software, mechanical, optical) products including multiple class II medical devices. – Prepared patent applications, responses to office actions. Conferenced with the patent examiner on prior art citations, claim amendment. -- Brought products to market including endoscopic, laparoscopic video cameras; urological wires, stents, baskets; flexible, rigid, semi-rigid scopes (conventional, digital); ESU generators, electrodes; surgical, aesthetic lasers. -- Participated in M&A activities on buying, selling side.