With the analysis among 2,146 patents, we discovered top 471 key players by total patent application. NGK Insulators, Ltd., Praxair Technology, Inc., China Petroleum & Chemical Corp. are dominant in this area. They take 6.94% of the total patent filing.
Aichi-ken, Japan
Patent: 59
Connecticut, United States
Patent: 55
Beijing Shi, China
Patent: 35
Pennsylvania, United States
Patent: 32
Osaka-fu, Japan
Patent: 31
Hessen, Germany
Patent: 30
Texas, United States
Patent: 29
Delaware, United States
Patent: 23
New York, United States
Patent: 22
With the analysis among 6 patents, we discovered top 3 start-ups by total patent application.
Washington, United States
Patent: 2
Chiba-ken, Japan
Patent: 1
With the analysis among related 1,122 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing BL Technology, Inc., Beijing University of Chemical Technology, Tongji University take 3.83% of patent filing during this period.
Texas, United States
Patent: 15
Beijing Shi, China
Patent: 15
Shanghai Shi, China
Patent: 13
Beijing Shi, China
Patent: 12
Jiangsu Sheng, China
Patent: 11
Tianjin Shi, China
Patent: 10
Beijing Shi, China
Patent: 9
Zuid-Holland, Netherlands
Patent: 9
Liaoning Sheng, China
Patent: 8
With the analysis among related 1,122 patents in last 5 years, we discover 393 new entrants. Guoneng Hydrogen Oil (Guangdong) Technology Co., Ltd., China Metallurgical CCID Technology Research Center Co., Ltd., Indian Oil Corp. Ltd. are the most active new entrants in this area.
Guoneng Hydrogen Oil (Guangdong) Technology Co., Ltd.
Guangdong Sheng, China
Patent: 8
Chongqing Shi, China
Patent: 7
Shanghai Shi, China
Patent: 6
Shaanxi Sheng, China
Patent: 6
Zhejiang Sheng, China
Patent: 5
Jiangsu Sheng, China
Patent: 5
Zhejiang Sheng, China
Patent: 5
With the analysis among 1,074 patents, we discovered top 227 universities and scientific research institutions by total patent application. Beijing University of Chemical Technology, Dalian Institute of Chemical Physics Chinese Academy of Sciences, Tongji University are dominant in this area. They take 9.59% of the total patent filing.
Beijing Shi, China
Patent: 38
Liaoning Sheng, China
Patent: 37
Shanghai Shi, China
Patent: 28
Jiangsu Sheng, China
Patent: 28
Beijing Shi, China
Patent: 25
Zhejiang Sheng, China
Patent: 24
Guangdong Sheng, China
Patent: 18
Tianjin Shi, China
Patent: 18
Beijing Shi, China
Patent: 17
Jiangsu Sheng, China
Patent: 14