legal ground
Article 93 of the Detailed Rules for the Implementation of People's Republic of China (PRC) Patent Law
When applying for a patent and going through other formalities with the patent administration department of the State Council, the following fees shall be paid:
(1) Application fee, application surcharge, publication and printing fee and priority claim fee;
(2) Examination fee and reexamination fee for an application for a patent for invention;
(3) Patent registration fee, announcement printing fee and annual fee;
(four) the right to recover the claim fee and the extension of the claim fee;
(five) the specification change fee, the patent evaluation report request fee and the request fee for invalidation.