With the analysis among 137,831 patents, we discovered top 474 key players by total patent application. Robert Bosch GmbH, Robert Bosch Corp., Toyota Motor Corp. are dominant in this area. They take 3.70% of the total patent filing.
With the analysis among related 37,893 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China Petroleum & Chemical Corp., PetroChina Co., Ltd., Robert Bosch Corp. take 0.94% of patent filing during this period.
With the analysis among related 37,893 patents in last 5 years, we discover 71 new entrants. Guangdong Power Grid Co. Ltd., Philter Labs, Inc., Emerson Climate Technologies (Suzhou) Co., Ltd. are the most active new entrants in this area.
With the analysis among 8,749 patents, we discovered top 383 universities and scientific research institutions by total patent application. Zhejiang University, Southwest Petroleum University, Jilin University are dominant in this area. They take 4.39% of the total patent filing.