Reasons for invalidation of patent right

According to the provisions of Article 45 of the Patent Law, if a patent right is requested to be declared invalid or partially invalid, a request for invalidation of the patent right and necessary evidence shall be submitted to the Patent Reexamination Board in duplicate. The request for invalidation shall, in combination with all the evidence submitted, specify the reasons for the request for invalidation and indicate the evidence on which each reason is based. Reasons for invalidation of patent right The reasons for the request for invalidation mentioned in the preceding paragraph refer to that the invention-creation granted a patent does not conform to the provisions of Article 2, Paragraph 1 of Article 20, Article 22, Article 23, Paragraph 3, Paragraph 4 of Article 26, Paragraph 2 of Article 27, Article 33 or Paragraph 2 of Article 20 or Paragraph 1 of Article 43 of these Rules, or belongs to the provisions of Article 5 and Article 25 of the Patent Law, or conforms to Article 9 of the Patent Law.