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  • Department Launched a Series of International Exchange Activities Online
    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 Improvement Forum
    On September 2, the Patent Reexamination and Invalidation Department held the first Quality and Efficiency Improvement Forum.>>more

  • Interpretation of the Top Patent Reexamination and Invalidation Casesin 2019
    Recently, the Patent Reexamination and Invalidation Department of the Patent Office held the activityof "Introduction to the Top 10 Cases"-->>more

  • Top 10 Patent Reexamination and Invalidation Cases of 2019 Released
    >>more

  • Top 10 Reexamination and Invalidation Cases of 2018 Released
    On the morning of April 25, during the Open Day of China National Intellectual Property Administration (CNIPA), the Intellectual Property Protection Department and the Reexamination>>more

  • Reexamination and Invalidation Department Attending Sunshine IP Forum
    Director General Ge Shu of the Reexamination and Invalidation Department attended and addressed the 2019 Sunshine IP Forum on March 23 at invitation. >>more

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