Legal analysis: The annual patent fee list is as follows: 1. Invention patent:1-3 900; 4-6 years1200; July-September 2000; 10- 12 4000; 13- 15 6000; 16-20,8000. 2. Utility model: 1-3 years 600; 4-5 years 900; 6-8 years1200; 9- 10 2000.3. Design patent: 1-3 years 600; 4-5 years 900; 6-8 years1200; 9- 10 2000. If the payment time exceeds the stipulated payment time by one month, 5% of the total annual fee of the current year will be charged as a late fee for each additional month.
Legal basis: Patent Law of People's Republic of China (PRC) Article 1 This Law is formulated for the purpose of protecting the legitimate rights and interests of patentees, encouraging inventions and creations, promoting the application of inventions and creations, improving innovation ability, and promoting scientific and technological progress and economic and social development.