Cathy Chin Eng has significant experience litigating patent, contract, trade secret, and trade dress cases, representing both plaintiffs and defendants. These cases have involved pharmaceuticals, medical devices, rare earth magnets, diagnostic test kits, dietary supplement products, bicycle locks, golf shoes, and ring laser gyroscopes. She also has experience with arbitration proceedings and has successfully prosecuted numerous patent applications in the fields of pharmaceuticals, dietary supplements, medical devices, and chemistry.

Cathy worked at Pennie & Edmonds from 1994 through 2003 and has litigated before several federal courts, including the district courts for California, Delaware, and Massachusetts, and the U.S. Court of Appeals for the Federal Circuit as well as the U.S. International Trade Commission.

Cathy is a member of the New York Intellectual Property Law Association, the American Bar Association, and the Association of the Bar of the City of New York.