With the analysis among 30,084 patents, we discovered top 483 key players by total patent application. Siemens AG, Siemens SA, State Grid Corp. of China are dominant in this area. They take 9.12% of the total patent filing.
With the analysis among related 13,539 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing State Grid Corp. of China, Sumitomo Wiring Systems Ltd., NIDEC Corp. take 4.59% of patent filing during this period.
With the analysis among related 13,539 patents in last 5 years, we discover 151 new entrants. Svolt Energy Technology Co. Ltd., Commissariat à l´énergie atomique et aux énergies alternatives, Hefei Guoxuan High-Tech Power Energy Co., Ltd. are the most active new entrants in this area.
With the analysis among 1,507 patents, we discovered top 200 universities and scientific research institutions by total patent application. Tsinghua University, North China Electric Power University, Xi'an Jiaotong University are dominant in this area. They take 13.07% of the total patent filing.