Patent Reexamination and Invalidation

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Department Launched a Series of International Exchange Activities Online 2020-12-16

Recently, under the guidance of the International Department of CNIPA, the Patent Reexamination and Invalidation Department has continuously carried out a series of online international exchange activities. >>more

Department Held the First Quality and Efficiency Impro... 2020-09-24
Interpretation of the Top Patent Reexamination and Inv... 2020-09-04
Top 10 Patent Reexamination and Invalidation Cases of ... 2020-05-08
Top 10 Reexamination and Invalidation Cases of 2018 Re... 2019-05-17

Data Update

Announcemnet of Oral Procedure Data

Oral Hearing Bulletin Update(M... [2021.05.07]

Examination Report Data

Updated Data of Examination De... [2021.04.29]

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Department Launched a Series of International Exchange Activities Online >>more