With the analysis among 97 patents, we discovered top 84 key players by total patent application. Jinan Rail Transit Group Co. Ltd., China Railway First Bureau Group Second Engineering Co., Ltd., China Railway Dalian Metro Line 5 Co., Ltd. are dominant in this area. They take 19.59% of the total patent filing.
Shandong Sheng, China
Patent: 7
Hebei Sheng, China
Patent: 6
Liaoning Sheng, China
Patent: 6
Zhejiang Sheng, China
Patent: 4
Guizhou Sheng, China
Patent: 4
Jiangxi Sheng, China
Patent: 4
Shanxi Sheng, China
Patent: 3
Guizhou Sheng, China
Patent: 2
Henan Sheng, China
Patent: 2
Sichuan Sheng, China
Patent: 2
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With the analysis among related 132 patents applied in the last 5 years. We discover 100 most active companies in this area. The fast-growing Institute of Karst Geology, Chinese Academy of Geological Sciences, China Railway First Bureau Group Second Engineering Co., Ltd., Shandong University take 15.91% of patent filing during this period.
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Patent: 9
Hebei Sheng, China
Patent: 6
Shandong Sheng, China
Patent: 6
Liaoning Sheng, China
Patent: 6
Shandong Sheng, China
Patent: 5
Jiangsu Sheng, China
Patent: 5
Hubei Sheng, China
Patent: 4
Chongqing Shi, China
Patent: 3
Henan Sheng, China
Patent: 3
Guizhou Sheng, China
Patent: 3
With the analysis among related 132 patents in last 5 years, we discover 87 new entrants. China Railway First Bureau Group Second Engineering Co., Ltd., China Railway Dalian Metro Line 5 Co., Ltd., China University of Geosciences Beijing are the most active new entrants in this area.
Hebei Sheng, China
Patent: 6
Liaoning Sheng, China
Patent: 6
Hubei Sheng, China
Patent: 4
Chongqing Shi, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Henan Sheng, China
Patent: 3
Jiangsu Sheng, China
Patent: 2
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Patent: 2
Zhejiang Sheng, China
Patent: 2
Guizhou Sheng, China
Patent: 2
With the analysis among 101 patents, we discovered top 34 universities and scientific research institutions by total patent application. Shandong University, University Of Jinan, Hohai University are dominant in this area. They take 27.72% of the total patent filing.
Shandong Sheng, China
Patent: 9
Shandong Sheng, China
Patent: 7
Jiangsu Sheng, China
Patent: 6
Anhui Sheng, China
Patent: 4
Guizhou Sheng, China
Patent: 4
Hubei Sheng, China
Patent: 4
Hunan Sheng, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Chongqing Shi, China
Patent: 3
Henan Sheng, China
Patent: 3