Conditions for reducing or exempting the annual patent fee: individuals with an average monthly income of less than 3,500 yuan in the previous year and enterprises, institutions, social organizations and non-profit scientific research institutions with taxable income of less than 300,000 yuan in the previous year may reduce or exempt the annual patent fee. The reduction ratio is 85% of the normal cost. If two or more individuals or units are the same patent applicant or patentee, the normal expenses will be reduced by 70%.
legal ground
Article 43 of the Patent Law of People's Republic of China (PRC), the patentee shall pay the annual fee from the year when the patent right is granted. Article 44 In any of the following circumstances, the patent right shall be terminated before the expiration of the time limit: (1) Failing to pay the annual fee as required; (2) The patentee waives his patent right in writing.