1. Declare all patent rights invalid;
2. Declare the patent part invalid;
3. Keep the patent right valid.
After the decision made by the Patent Reexamination Board to declare the patent right invalid comes into effect, it shall be registered and announced by China National Intellectual Property Administration.
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.
The Patent Reexamination Board will make a decision about 8 months from the date of submitting the application.
I hope I can help you adopt it.