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China legal tool Intellectual property National framework
Calculate CNIPA annual maintenance fees for invention, utility-model and design patents, including the official annual-fee escalation bands and late-payment surcharge.
Invention: years 1–3 RMB 900; 4–6 RMB 1,200; 7–9 RMB 2,000; 10–12 RMB 4,000; 13–15 RMB 6,000; 16–20 RMB 8,000. Utility model: 600 / 900 / 1,200 / 2,000 across years 1–3 / 4–5 / 6–8 / 9–10. Design uses the same first 10-year bands and RMB 3,000 for years 11–15.
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