Article 45 of the Patent Law stipulates that any unit or individual who thinks that the grant of the patent right is not in conformity with the relevant provisions of this Law may request the Patent Reexamination Board to declare the patent right invalid from the date when the patent administrative department of the State Council announces the grant of the patent right. Invalid. There is no time limit. For an application for a patent for invention before authorization, if there is any objection to its novelty, you can submit an opinion statement to the Patent Office, express your opinions on the disputed patent application and submit evidence such as patent or non-patent documents related to the background technology in time.
For more intellectual property issues, please consult Bajie Intellectual Property.