With the analysis among 179 patents, we discovered top 126 key players by total patent application. Powerchina Chengdu Engineering Corp. Ltd., Powerchina Beijing Engineering Corp. Ltd., Powerchina Huadong Engineering Corp. Ltd. are dominant in this area. They take 12.29% of the total patent filing.
Powerchina Chengdu Engineering Corp. Ltd.
Sichuan Sheng, China
Patent: 13
Powerchina Beijing Engineering Corp. Ltd.
Beijing Shi, China
Patent: 5
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 4
Powerchina Guiyang Engineering Corp. Ltd.
Guizhou Sheng, China
Patent: 4
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 4
Liaoning Hengjin Building Materials Co., Ltd.
Liaoning Sheng, China
Patent: 4
China Construction Fourth Engineering Division Corp. Ltd.
Guangdong Sheng, China
Patent: 3
China Railway 21st Bureau Group Co., Ltd.
Gansu Sheng, China
Patent: 3
Sichuan Institute of Geological Engineering Investigation
Sichuan Sheng, China
Patent: 3
China Railway Design Group Co., Ltd.
Tianjin Shi, China
Patent: 3
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With the analysis among related 195 patents applied in the last 5 years. We discover 138 most active companies in this area. The fast-growing Powerchina Chengdu Engineering Corp. Ltd., Chengdu University of Technology, Shandong University take 6.67% of patent filing during this period.
Powerchina Chengdu Engineering Corp. Ltd.
Sichuan Sheng, China
Patent: 5
Chengdu University of Technology
Sichuan Sheng, China
Patent: 4
Shandong Sheng, China
Patent: 4
Dalian University of Technology
Liaoning Sheng, China
Patent: 4
Shaanxi Sheng, China
Patent: 4
Powerchina Guiyang Engineering Corp. Ltd.
Guizhou Sheng, China
Patent: 4
Ocean University of China
Shandong Sheng, China
Patent: 3
China Construction Fourth Engineering Division Corp. Ltd.
Guangdong Sheng, China
Patent: 3
Hebei University of Technology
Hebei Sheng, China
Patent: 2
China Railway Research Institute Co., Ltd.
Sichuan Sheng, China
Patent: 2
With the analysis among related 195 patents in last 5 years, we discover 115 new entrants. Shandong University, Dalian University of Technology, Chang'an University are the most active new entrants in this area.
Shandong Sheng, China
Patent: 4
Dalian University of Technology
Liaoning Sheng, China
Patent: 4
Shaanxi Sheng, China
Patent: 4
Powerchina Guiyang Engineering Corp. Ltd.
Guizhou Sheng, China
Patent: 4
Ocean University of China
Shandong Sheng, China
Patent: 3
China Construction Fourth Engineering Division Corp. Ltd.
Guangdong Sheng, China
Patent: 3
Hebei University of Technology
Hebei Sheng, China
Patent: 2
China Railway Research Institute Co., Ltd.
Sichuan Sheng, China
Patent: 2
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 2
Hefei University of Technology
Anhui Sheng, China
Patent: 2
With the analysis among 131 patents, we discovered top 42 universities and scientific research institutions by total patent application. Tongji University, Chengdu University of Technology, China University of Mining & Technology are dominant in this area. They take 14.50% of the total patent filing.
Shanghai Shi, China
Patent: 8
Chengdu University of Technology
Sichuan Sheng, China
Patent: 6
China University of Mining & Technology
Jiangsu Sheng, China
Patent: 5
China University of Geosciences Beijing
Hubei Sheng, China
Patent: 5
Shandong Sheng, China
Patent: 4
Hunan Sheng, China
Patent: 4
Shaanxi Sheng, China
Patent: 4
China University of Geosciences
Beijing Shi, China
Patent: 4
University of Science & Technology Beijing
Beijing Shi, China
Patent: 3
Hunan University of Science & Technology
Hunan Sheng, China
Patent: 3