Legal analysis: If the annual patent fee is not paid with proper reasons, you can request the restoration of the patent right. According to Article 6 of the Detailed Rules for the Implementation of the Patent Law, if a party delays the time limit specified in the Patent Law or these Detailed Rules or the time limit specified by the patent administration department in the State Council due to irresistible reasons, resulting in the loss of his rights, he may request the patent administration department in the State Council to restore his rights within 2 months from the date when the obstacle is removed, or at the latest within 2 years from the date when the time limit expires.
Legal basis: Article 6 of the Patent Law of the People's Republic of China * * * If a party delays the time limit specified in the Patent Law or these Detailed Rules or the time limit specified by the patent administration department in the State Council due to irresistible reasons, resulting in the loss of his rights, he may request the patent administration department in the State Council to restore his rights within 2 months from the date when the obstacle is removed, or at the latest within 2 years from the date when the time limit expires.