Authored by: GORDON GAO, Gary Song and Wayne Wang
King & Wood recently represented an optical products company in a series of successful patent invalidation proceedings involving optical imaging system patents. One of those victories — CNIPA Invalidation Decision No. 581571 concerning Chinese invention patent No. ZL201610090398.1, entitled “Optical Imaging System” — resulted in the complete invalidation of the patent and was later selected by the China National Intellectual Property Administration as one of its 2025 Annual Typical Patent Reexamination and Invtai alidation Cases.