The patent value score is actualized by the optimized index system of patent value evaluation. According to Pareto principle, the patents are divided into different value categories, which provide the basis for the hierarchical classification management of patent. Furthermore, two suggestions are put forward from the perspective of value-added management of technology transfer process: 1) to implement patent portfolio management at the center of high-value patents, 2) to carry out the prior patent layout strategy for potential high value patents. The empirical analysis shows that the optimized model has good reliability for patent value evaluation. According to the evaluation results, it is of great significance to promote patent portfolio management and prior layout strategy for the value-added in the process of technology transfer.