Which institution is the Patent Reexamination Board from?

China National Intellectual Property Administration. 1985 On April 5, the Patent Reexamination Board of China Patent Office was established as an internal organ of China Patent Office. 1998, renamed the Patent Reexamination Board of China National Intellectual Property Administration Patent Office. 200 1 renamed the Patent Reexamination Board of the State Intellectual Property Office. At the end of 2003, it was approved as a directly affiliated institution in China National Intellectual Property Administration with independent legal personality. 20 19 the reform of the intellectual property institution was renamed as the examination and invalidation department of China National Intellectual Property Administration patent office, which is an internal institution of China National Intellectual Property Administration patent office.