Abstract:This paper analyzes licensed patent and traded patent by means of comparing their general characteristics, geographical characteristics, patent technology age and patent technology field. The result shows that: (1) the number of licensed patent is greater than that of traded patent, and both of licensed patent and traded patent are mainly invention patents, concentrated distribution in assignments transportation and chemical metallurgy; (2) the output and input areas of patent are mainly distributed in more developed economy and abundant in universities areas; (3) the technology age of traded patent is older than that of licensed patent; (4) the licensed patents are distributed in more widely technology fields and patents of different technology field suit different models of technology transfer.