With the analysis among 2,209 patents, we discovered top 437 key players by total patent application. Powerchina Huadong Engineering Corp. Ltd., Powerchina Chengdu Engineering Corp. Ltd., China Railway Tunnel Bureau Group Co., Ltd. are dominant in this area. They take 10.14% of the total patent filing.
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 101
Powerchina Chengdu Engineering Corp. Ltd.
Sichuan Sheng, China
Patent: 69
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 54
Tiandi Science & Technology Co., Ltd.
Beijing Shi, China
Patent: 53
China Railway Eryuan Engineering Group Co., Ltd.
Sichuan Sheng, China
Patent: 41
China Coal Science and Industry Mining Research Institute Co., Ltd.
Beijing Shi, China
Patent: 38
China Railway 18th Bureau Group Co., Ltd.
Tianjin Shi, China
Patent: 28
Powerchina Guiyang Engineering Corp. Ltd.
Guizhou Sheng, China
Patent: 25
China Railway 12th Bureau Group Co., Ltd.
Shanxi Sheng, China
Patent: 24
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 23
With the analysis among 3 patents, we discovered top 2 start-ups by total patent application.
Illinois, United States
Patent: 2
With the analysis among related 2,837 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Shandong University, China University of Mining & Technology, China University of Mining & Technology (Beijing) take 9.73% of patent filing during this period.
Shandong Sheng, China
Patent: 119
China University of Mining & Technology
Jiangsu Sheng, China
Patent: 87
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 70
Shandong University of Science & Technology
Shandong Sheng, China
Patent: 69
Hunan Sheng, China
Patent: 66
Wuhan Institute of Geotechnical Mechanics, Chinese Academy of Sciences
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Patent: 62
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 60
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 57
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 52
Anhui University of Science & Technology
Anhui Sheng, China
Patent: 52
With the analysis among related 2,837 patents in last 5 years, we discover 323 new entrants. China Coal Science and Industry Mining Research Institute Co., Ltd., State Key Laboratory of Shield Tunneling and Tunneling Technology, China Railway Liuyuan Group Co., Ltd. are the most active new entrants in this area.
China Coal Science and Industry Mining Research Institute Co., Ltd.
Beijing Shi, China
Patent: 38
State Key Laboratory of Shield Tunneling and Tunneling Technology
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Patent: 24
China Railway Liuyuan Group Co., Ltd.
Tianjin Shi, China
Patent: 14
Changsha Mine Research Institute Co., Ltd.
Hunan Sheng, China
Patent: 12
Fujian University of Technology
Fujian Sheng, China
Patent: 11
China Three Gorges University
Hubei Sheng, China
Patent: 11
Anhui Sheng, China
Patent: 11
China Railway Tunnel Co Ltd.
Henan Sheng, China
Patent: 11
Research Institute of Highway Ministry of Transport
Beijing Liyan Technology Co., Ltd.
Beijing Shi, China
Patent: 11
With the analysis among 2,022 patents, we discovered top 141 universities and scientific research institutions by total patent application. Shandong University, China University of Mining & Technology, Shandong University of Science & Technology are dominant in this area. They take 20.57% of the total patent filing.
Shandong Sheng, China
Patent: 157
China University of Mining & Technology
Jiangsu Sheng, China
Patent: 142
Shandong University of Science & Technology
Shandong Sheng, China
Patent: 117
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 83
Hunan Sheng, China
Patent: 81
Anhui University of Science & Technology
Anhui Sheng, China
Patent: 68
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 66
Hunan University of Science & Technology
Hunan Sheng, China
Patent: 45
Shaanxi Sheng, China
Patent: 44
Henan Polytechnic University
Henan Sheng, China
Patent: 42