(2) Technical factors: mainly including the degree of patent innovation. The higher the technical complexity, the more difficult it is to analyze, test and simulate the technical know-how, and the higher the patent value.
(3) Industrial factors: mainly including the degree of industrialization, the adaptability of national policies, the scope of industrial application, and the degree to which technical products are accepted by the market.
(4) Special factors: the certificate of special industry has great influence on the patent value.