With the analysis among 3,095 patents, we discovered top 494 key players by total patent application. Exxon Research & Engineering Co., Yunnan Dahongshan Tunnel Co. Ltd., China Coal Science and Industry Group Wuhan Design and Research Institute Co., Ltd. are dominant in this area. They take 3.46% of the total patent filing.
Yunnan Sheng, China
Patent: 37
Hubei Sheng, China
Patent: 26
Texas, United States
Patent: 19
Zuid-Holland, Netherlands
Patent: 19
Beijing Shi, China
Patent: 18
Nevada, United States
Patent: 18
Hubei Sheng, China
Patent: 17
Nei Mongol Zizhiqu, China
Patent: 15
Beijing Shi, China
Patent: 14
With the analysis among 2 patents, we discovered top 2 start-ups by total patent application.
Texas, United States
Patent: 1
Hampshire, United Kingdom
Patent: 1
With the analysis among related 1,654 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China Railway Siyuan Survey & Design Group Co., Ltd., China Aerospace Science and Industry Academy of Aviation Technology, PetroChina Co., Ltd. take 2.06% of patent filing during this period.
Hubei Sheng, China
Patent: 17
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Patent: 9
Beijing Shi, China
Patent: 8
California, United States
Patent: 8
Shanghai Shi, China
Patent: 8
Anhui Sheng, China
Patent: 8
Shanghai Shi, China
Patent: 8
Sichuan Sheng, China
Patent: 7
Hebei Sheng, China
Patent: 7
Beijing Shi, China
Patent: 6
With the analysis among related 1,654 patents in last 5 years, we discover 444 new entrants. China Railway Siyuan Survey & Design Group Co., Ltd., China Aerospace Science and Industry Academy of Aviation Technology, Hyperloop Transportation Technologies, Inc. are the most active new entrants in this area.
Hubei Sheng, China
Patent: 17
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Patent: 9
California, United States
Patent: 8
Beijing Shi, China
Patent: 6
Tianjin Shi, China
Patent: 6
Zhejiang Sheng, China
Patent: 6
Zhejiang Sheng, China
Patent: 6
Hunan Sheng, China
Patent: 6
Guizhou Sheng, China
Patent: 6
Tianjin Shi, China
Patent: 5
With the analysis among 494 patents, we discovered top 110 universities and scientific research institutions by total patent application. Southwest Petroleum University, China University of Petroleum (East China), Zhejiang University are dominant in this area. They take 6.07% of the total patent filing.
Sichuan Sheng, China
Patent: 11
Shandong Sheng, China
Patent: 10
Zhejiang Sheng, China
Patent: 7
Hunan Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Hubei Sheng, China
Patent: 5
Hubei Sheng, China
Patent: 4
Shandong Sheng, China
Patent: 4
Sichuan Sheng, China
Patent: 4
Yunnan Sheng, China
Patent: 4