With the analysis among 765 patents, we discovered top 477 key players by total patent application. Altivera LLC, China Railway Siyuan Survey & Design Group Co., Ltd., Svenska Kullagerfabriken AB are dominant in this area. They take 5.10% of the total patent filing.
Hubei Sheng, China
Patent: 14
Henan Sheng, China
Patent: 6
Jiangsu Sheng, China
Patent: 6
China Railway Major Bridge Engineering Group Co., Ltd.
Hubei Sheng, China
Patent: 6
Sichuan Sheng, China
Patent: 6
Tianjin Shi, China
Patent: 6
Beijing Shi, China
Patent: 5
Emilia-Romagna, Italy
Patent: 5
With the analysis among 3 patents, we discovered top 2 start-ups by total patent application.
Taiwan Province, China
Patent: 2
Beijing Shi, China
Patent: 1
With the analysis among related 318 patents applied in the last 5 years. We discover 281 most active companies in this area. The fast-growing University of Shanghai for Science & Technology, China Railway Siyuan Survey & Design Group Co., Ltd., China Construction Underground Space Co., Ltd. take 6.92% of patent filing during this period.
Shanghai Shi, China
Patent: 9
Hubei Sheng, China
Patent: 7
Sichuan Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Henan Sheng, China
Patent: 6
Fujian Sheng, China
Patent: 5
Liaoning Sheng, China
Patent: 3
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Patent: 3
Shanghai Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
With the analysis among related 318 patents in last 5 years, we discover 235 new entrants. University of Shanghai for Science & Technology, China Construction Underground Space Co., Ltd., CITIC Heavy Industries Co., Ltd. are the most active new entrants in this area.
Shanghai Shi, China
Patent: 9
Sichuan Sheng, China
Patent: 6
Henan Sheng, China
Patent: 6
Liaoning Sheng, China
Patent: 3
Shanghai Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Shanghai Shi, China
Patent: 2
Zhejiang Sheng, China
Patent: 2
Jiangxi Sheng, China
Patent: 2
Shanghai Shi, China
Patent: 2
With the analysis among 246 patents, we discovered top 80 universities and scientific research institutions by total patent application. Southeast University, Zhejiang University, University of Shanghai for Science & Technology are dominant in this area. They take 12.60% of the total patent filing.
Jiangsu Sheng, China
Patent: 13
Zhejiang Sheng, China
Patent: 9
Shanghai Shi, China
Patent: 9
Beijing Shi, China
Patent: 8
Fujian Sheng, China
Patent: 6
Shanghai Shi, China
Patent: 5
Shanghai Shi, China
Patent: 4
Hunan Sheng, China
Patent: 4
Sichuan Sheng, China
Patent: 4