How much is the substantive examination fee?

The substantive examination fee needs to be paid by the parties voluntarily, and the payment period, type and amount need to be monitored to avoid overdue. If the parties are not clear about the patent fees to be paid, they can inform them in the following ways: Visit official website, China National Intellectual Property Administration, and users who apply for electronic registration can visit. In China, the substantive examination fee for an application for a patent for invention is 2,500 yuan. If the applicant has gone through the filing formalities of patent application fee reduction and approval in the Patent Office, the specific amount of substantive examination fee that the applicant should pay is as follows: No fee reduction: 2,500 yuan, 85% fee reduction: 375 yuan, and 70% fee reduction: 750 yuan.