When will the annual fee for invention patents be paid?

Legal analysis: the annual fee for invention patent is paid from the year when the patent right is granted. According to the relevant laws and regulations, the patentee shall pay the annual fee from the year when the patent right is granted. And the annual fee after that year should be paid before the expiration of the previous year.

Legal basis: People's Republic of China (PRC) Patent Law.

Article 43 The patentee shall pay the annual fee from the year when the patent right is granted.

Article 81 To apply for a patent and go through other formalities with the patent administration department of the State Council, the fees shall be paid in accordance with the regulations.

Article 98 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC) shall, after the year in which the patent right is granted, pay the annual fee before the expiration of the previous year. If the patentee fails to pay or fails to pay in full, the patent administration department of the State Council shall notify the patentee to pay the annual fee within 6 months from the date of expiration, and pay the late fee at the same time; The amount of the late payment fee is calculated by adding 5% of the full annual fee of the current year for every 1 month that exceeds the prescribed payment time; If it is not paid at the expiration of the time limit, the patent right shall be terminated from the date when the annual fee should be paid.