With the analysis among 257 patents, we discovered top 139 key players by total patent application. Chevron, Inc., Dyno Nobel AS, China Railway Tunnel Bureau Group Co., Ltd. are dominant in this area. They take 11.67% of the total patent filing.
Pennsylvania, United States
Patent: 13
Guangdong Sheng, China
Patent: 8
Beijing Shi, China
Patent: 7
Henan Sheng, China
Patent: 7
Beijing Shi, China
Patent: 5
Guangdong Sheng, China
Patent: 5
Tianjin Shi, China
Patent: 5
Beijing Shi, China
Patent: 4
Hubei Sheng, China
Patent: 4
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With the analysis among related 231 patents applied in the last 5 years. We discover 157 most active companies in this area. The fast-growing Dyno Nobel AS, Nanjing Normal University, China Railway Tunnel Bureau Group Co., Ltd. take 10.39% of patent filing during this period.
Jiangsu Sheng, China
Patent: 8
Guangdong Sheng, China
Patent: 7
Henan Sheng, China
Patent: 6
Jiangxi Sheng, China
Patent: 4
Beijing Shi, China
Patent: 4
Hubei Sheng, China
Patent: 4
Beijing Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Jiangxi Sheng, China
Patent: 3
With the analysis among related 231 patents in last 5 years, we discover 135 new entrants. Dyno Nobel AS, Nanjing Normal University, Gannan University of Science and Technology are the most active new entrants in this area.
Jiangsu Sheng, China
Patent: 8
Jiangxi Sheng, China
Patent: 4
Hubei Sheng, China
Patent: 4
Beijing Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Jiangxi Sheng, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Beijing Shi, China
Patent: 3
Guangdong Sheng, China
Patent: 3
With the analysis among 140 patents, we discovered top 39 universities and scientific research institutions by total patent application. Nanjing Normal University, Southwest Petroleum University, China University of Geosciences Beijing are dominant in this area. They take 12.14% of the total patent filing.
Jiangsu Sheng, China
Patent: 8
Sichuan Sheng, China
Patent: 5
Hubei Sheng, China
Patent: 4
Jiangxi Sheng, China
Patent: 3
Beijing Shi, China
Patent: 3
Guangdong Sheng, China
Patent: 2
Sichuan Sheng, China
Patent: 2
Shandong Sheng, China
Patent: 2
Shaanxi Sheng, China
Patent: 2
Jiangsu Sheng, China
Patent: 2