What are the evaluation methods of patent value?

What are the methods of patent value evaluation? Cost method refers to the method of determining the value of assets by deducting depreciation from the current replacement cost of the assets being evaluated. Its calculation formula is: v = c-d-ev- the appraised value of the appraised assets; C- replacement cost value; D- functional devaluation; Electronic economy depreciates. The replacement cost value of technology refers to the cost value calculated according to the conditions at that time and the current price standard, as well as the manpower, material resources, amount of funds, testing requirements and publicity of past activities. This cost value is the present value of replacement cost. It is mainly composed of the following elements: development cost, technical inspection cost and technical publicity cost. Technical functional depreciation refers to selecting an advanced reference object with strong adaptability, comparing the products produced by the evaluated technology with those produced by the reference object, and calculating the value of cost increase or profit decrease between the evaluated assets and the reference object according to the comprehensive analysis of cost, sales and profit, which can be regarded as the functional depreciation of the evaluated object within its service life. The economic depreciation of technology is mainly caused by the changes of national macroeconomic policies or market environment. Generally speaking, in the evaluation of technical assets, the application of cost method is mainly: to amortize the cost of technical assets; So as to determine the value of the patent in the asset list; So as to help determine the selling price of manufactured technology; Or in order to claim compensation from the infringer. ; In addition, when the future income of technical assets is difficult to predict or the risk is difficult to quantify, the cost method can be used. Market method Market method refers to the method of selecting several identical or similar assets as reference objects in the market, comparing and adjusting the assessed assets with the reference objects according to various value influencing factors, and then comprehensively analyzing the results of various adjustments to determine the asset value. When applying the market method as an evaluation method, there should be a fully active market, comparable reference objects and open information. At present, China's technology market is still in the primary stage, with small market transaction volume, unstable market environment and incomplete technical information and materials related to transactions. Moreover, due to the creativity and novelty of the technology itself, it is generally difficult to find the reference information of technology assets trading in the open market, and the application of market method has certain limitations in technology evaluation. In the practical application of market method, although the non-standard and uniqueness of patent assets limit the application of market method in patent assets evaluation, it does not rule out the necessity and possibility of applying market method in evaluation practice. Foreign scholars believe that market law emphasizes the comparability of reasonably competitive property. If there are enough cases of buying patents from the market to E-Tech, which can be used as a reference for comparative analysis, and the difference between the assessed object and the comparable reference can be appropriately adjusted, the market method can be applied. Income method Income method refers to the method of determining the value of assets by estimating the future income of the assets being evaluated and converting it into the present value. Income method is a highly technical evaluation method, and there is no corresponding standard in China, so it is more difficult than the first two methods. To sum up, there are three methods to evaluate patent value: income method, cost method and market method. Among them, the income method has not been accurately established in China, which is relatively more difficult than the first two, and requires a strong technical evaluation method. Therefore, in the above three evaluation methods, we can choose a simpler one to complete the task.