Legal analysis: The patent evaluation fee generally depends on the specific value of the patent, and 50% of the evaluation fee is charged. The charging standard of asset appraisal should be divided into five grades, and the differential charging standard should be implemented, that is, the charging grade should be divided according to the original value of the appraised assets, and the total charge should be added after the classification calculation. Among them, the patent technology evaluation should collect the basic information of the enterprise, patent technology information, financial information and other information.

Legal basis: Article 57 of the Detailed Rules for the Implementation of the Patent Law of People's Republic of China (PRC). The patent administrative department of the State Council shall make a patent evaluation report within 2 months after receiving the request for patent evaluation report. For the same utility model or design patent right, if multiple obligees request to make a patent evaluation report, the patent administrative department of the State Council will only make a patent evaluation report. Any unit or individual may consult or copy the patent evaluation report. Patent evaluation fee is generally charged according to the evaluation value, and 50% of the evaluation fee is charged. The charging standard for asset appraisal is divided into five grades, and the statutory asset appraisal service for piecework charging can charge the appraisal fee according to the original book value of the assets to be appraised (the original book value or replacement value can be assessed, the same below).