Patent Status Review and Ultra High Voltage Patent Analysis

摘要

With more attention paid to the development of technology as well as the improvement of the public's knowledge level, there is an increasing trend in the application for the patents. However, the concerning documents for the development of the patents in our country are so limited, so carrying out a detailed research in this field is so necessary and urgent. Based on the statistics given by the SIPO, the growth rate of the patents' quantity and variation trend at home and abroad from 1986 to 2015 are analyzed and compared. Meanwhile, the patents quantity variation, the techno sphere constitution, the applicant and the the institution of a specialized field about ultra-high voltage transmission technology are studied. With the help of these authentic statistics, it is revealed that the development trend in our country is similar to that of the world level. But it is necessary to point out that there are some differences in the statistics during some fixed time periods. This research aims to offer some help for the progress of the patents' undertakings in our country and there is a sense in doing so.