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History

Established on April 5th, 1985, the Patent Reexamination and Invalidation Department was originally named as the Patent Reexamination Board of China Patent Office. Then, in 1998, it was named as the Patent Reexamination Board of China Patent Office of SIPO. Ever Since 2001, it has been named as the Patent Reexamination Board of SIPO. At the end of 2003, it was officially approved as an independent legal entity subordinated to SIPO. In 2019, during the restructuring of I...

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