关键词: 专利合作, 技术流动, Q值, patent collaboration, technology flowing, Q value

Abstract: This paper analyzed country technology cooperation from the perspective of country based on the patent cooperation analysis. According to the state of technological development, the countries are sorted into four types: SAC,SPC,SDC,SLC. Then detected technology flow situation in the interaction of national groups by using the Q value, to find country which is in a role as an intermediary. Through the research, we found that countries are increasingly dependent on international cooperation in the patent application, patent international cooperation mainly occurs in the SAC, SPC, SDC countries or these technologies developed countries, and in the interaction between the different types of countries, the countries whose technology is more developed in the group of countries play more important role as an intermediary in the interaction.