A Study On Technology Spillover Of Foreign Patent Application

Developed countries increase the number of patent application to developing countries and improve its quality, which potentially prompt technology spillover of patent application. Whether foreign patent application, as a channel of international technology diffusion, produces obvious spillover and how to make use of it to promote technology progress attract great attention.The first part of the paper puts forward the context and purpose of the research, as well as the basic structure of the paper. Then the second part reviews related literature on technology spillover of foreign patent application and lays emphasis on its diffusion and function mechanism, as well as different factors that affect technology spillover of foreign patent application. And the third part analyzes transmission condition and scale of foreign patent application and deduces the optimal patent quality for its technology spillover. In the fourth part of the paper, it empirically tests the effects of foreign patent application on technology progress of different developing countries and Chinese three regions. The approach to quantify foreign R&D stock embodied in foreign patent application is an important creative idea, which provides a new way for future empirical studies on foreign patent application. Finally, it gives some suggestions on developing countries'technology progress policies.The results of the paper show that, foreign patent application, as an important channel of international technology diffusion, potentially prompts host country's technology progress; and the amounts of foreign R&D stock that the host country gains is related to the quality of foreign patent application negatively, international technology spillover is optimal when the quality of foreign patent application amounts to the threshold value of patent application to host country; and empirical results indicate that foreign patent application has both technology diffusion and monopoly effects on developing countries.