How to calculate the patent fee?

Legal analysis: the basis of patent entry: if an enterprise successfully applies for a patent, the patent fee should be included in intangible assets and amortized by stages; 2. Intangible assets shall be amortized every month during the amortization period from the month of confirmation; 3. The patent expenses of unformed patent assets used by the management department are directly included in the profits and losses of the enterprise; 4. The patent fees of the unpatented assets, if used by the R&D department, should be included in the R&D expenditure first, and then carried forward to the profits and losses of the enterprise.

Legal basis: Article 3 of the Patent Law of People's Republic of China (PRC), the State Council Patent Administration Department is responsible for the management of patent work throughout the country; Accept and examine patent applications in a unified manner and grant patent rights according to law. The departments for patent administration under the people's governments of provinces, autonomous regions and municipalities directly under the Central Government shall be responsible for patent administration within their respective administrative areas. Article 43 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. Where the patent right is terminated before the expiration of the time limit, it shall be registered and announced by the patent administration department of the State Council.