With the analysis among 9,812 patents, we discovered top 473 key players by total patent application. Scania CV AB, China Petroleum & Chemical Corp., Landmark Graphics Corp. are dominant in this area. They take 4.05% of the total patent filing.
With the analysis among related 4,219 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing PetroChina Co., Ltd., China Petroleum & Chemical Corp., China National Petroleum Corp. take 4.43% of patent filing during this period.
With the analysis among related 4,219 patents in last 5 years, we discover 279 new entrants. Xiamen Yaxon Network Co., Ltd., ZF Friedrichshafen AG, Wuhan Allkids Culture & Education Co., Ltd. are the most active new entrants in this area.
With the analysis among 2,497 patents, we discovered top 322 universities and scientific research institutions by total patent application. University of Electronic Science & Technology of China, Jilin University, Southwest Petroleum University are dominant in this area. They take 7.17% of the total patent filing.