With the analysis among 2,037 patents, we discovered top 410 key players by total patent application. Westinghouse Brake & Signal Co. Ltd., PetroChina Co., Ltd., Westinghouse Air Brake Co. are dominant in this area. They take 12.08% of the total patent filing.
Beijing Shi, China
Patent: 68
Pennsylvania, United States
Patent: 63
Baden-Württemberg, Germany
Patent: 43
Beijing Shi, China
Patent: 30
Texas, United States
Patent: 22
Texas, United States
Patent: 20
Delaware, United States
Patent: 18
With the analysis among 1 patents, we discovered top 1 start-ups by total patent application.
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Patent: 1
With the analysis among related 360 patents applied in the last 5 years. We discover 92 most active companies in this area. The fast-growing PetroChina Co., Ltd., Southwest Petroleum University, Saudi Arabian Oil Co. take 18.06% of patent filing during this period.
Beijing Shi, China
Patent: 30
Sichuan Sheng, China
Patent: 20
Beijing Shi, China
Patent: 14
Jiangsu Sheng, China
Patent: 7
Texas, United States
Patent: 7
Shandong Sheng, China
Patent: 7
Delaware, United States
Patent: 7
Texas, United States
Patent: 4
Shandong Sheng, China
Patent: 4
With the analysis among related 360 patents in last 5 years, we discover 60 new entrants. Sinopec Corp. Shengli Oilfield Branch Exploration and Development Research Institute, Equinor Energy AS, Suncor Energy, Inc. are the most active new entrants in this area.
Shandong Sheng, China
Patent: 4
Rogaland, Norway
Patent: 4
Shaanxi Sheng, China
Patent: 2
Liaoning Sheng, China
Patent: 2
Jiangsu Sheng, China
Patent: 2
Henan Sheng, China
Patent: 2
With the analysis among 305 patents, we discovered top 32 universities and scientific research institutions by total patent application. Southwest Petroleum University, China University of Petroleum (East China), China Petroleum University Beijing are dominant in this area. They take 18.36% of the total patent filing.
Sichuan Sheng, China
Patent: 29
Shandong Sheng, China
Patent: 12
Beijing Shi, China
Patent: 11
Jiangsu Sheng, China
Patent: 8
Beijing Shi, China
Patent: 8
Henan Sheng, China
Patent: 7
Distrito Federal, Mexico
Patent: 7