With the analysis among 37,421 patents, we discovered top 476 key players by total patent application. Hitachi Ltd., Fujitsu Ltd., Fujitsu Microelectronics America, Inc. are dominant in this area. They take 7.32% of the total patent filing.
With the analysis among related 14,575 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Huawei Technologies Co., Ltd., State Grid Corp. of China, Hitachi Ltd. take 3.73% of patent filing during this period.
With the analysis among related 14,575 patents in last 5 years, we discover 173 new entrants. Guangdong Power Grid Co. Ltd., Talkdesk, Inc., Guizhou Power Grid Corp. are the most active new entrants in this area.
With the analysis among 3,310 patents, we discovered top 324 universities and scientific research institutions by total patent application. Tsinghua University, Huazhong University of Science & Technology, Shanghai Jiao Tong University are dominant in this area. They take 9.37% of the total patent filing.