With the analysis among 4,190 patents, we discovered top 466 key players by total patent application. Construction Research & Technology GmbH, Shimizu Corp., Ohbayashi Corp. are dominant in this area. They take 4.61% of the total patent filing.
Construction Research & Technology GmbH
Tokyo-to, Japan
Patent: 46
Jiangsu Sheng, China
Patent: 46
New York, United States
Patent: 45
China Railway First Survey & Design Institute Group Co., Ltd.
Shaanxi Sheng, China
Patent: 42
Jiangsu Sheng, China
Patent: 35
China Railway Eryuan Engineering Group Co., Ltd.
Sichuan Sheng, China
Patent: 30
With the analysis among 17 patents, we discovered top 2 start-ups by total patent application.
Hamburg, Germany
Patent: 8
With the analysis among related 2,069 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Southwest Jiaotong University, Shandong University of Science & Technology, China Railway Tunnel Bureau Group Co., Ltd. take 3.77% of patent filing during this period.
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 29
Shandong University of Science & Technology
Shandong Sheng, China
Patent: 25
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 24
Hunan Sheng, China
Patent: 23
China Railway First Survey & Design Institute Group Co., Ltd.
Shaanxi Sheng, China
Patent: 22
China Communications First Public Bureau Group Co., Ltd.
Beijing Shi, China
Patent: 18
China Railway 18th Bureau Group Co., Ltd.
Tianjin Shi, China
Patent: 17
China Railway Siyuan Survey & Design Group Co., Ltd.
Hubei Sheng, China
Patent: 15
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 15
Shaanxi Sheng, China
Patent: 15
With the analysis among related 2,069 patents in last 5 years, we discover 315 new entrants. Zhejiang Huatie Emergency Equipment Science & Tech Co., Ltd., Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd., China Academy of Railway Sciences Group Co. Ltd. are the most active new entrants in this area.
Zhejiang Huatie Emergency Equipment Science & Tech Co., Ltd.
Zhejiang Sheng, China
Patent: 12
Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd.
Beijing Shi, China
Patent: 12
China Academy of Railway Sciences Group Co. Ltd.
Beijing Shi, China
Patent: 10
Xuzhou Zhirun Mining Equipment Science & Technology Co Ltd
Jiangsu Sheng, China
Patent: 10
State Key Laboratory of Shield Tunneling and Tunneling Technology
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Patent: 9
China Construction Tunnel Construction Co., Ltd.
Chongqing Shi, China
Patent: 9
Zhong Jiao Yi Gong Ju Qiao Sui Gong Cheng You Xian Gong Si
Hunan Sheng, China
Patent: 8
Hamburg, Germany
Patent: 8
China Railway 19th Bureau Group Co., Ltd.
Beijing Shi, China
Patent: 7
With the analysis among 887 patents, we discovered top 149 universities and scientific research institutions by total patent application. Shandong University of Science & Technology, Southwest Jiaotong University, Chang'an University are dominant in this area. They take 14.99% of the total patent filing.
Shandong University of Science & Technology
Shandong Sheng, China
Patent: 61
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 40
Shaanxi Sheng, China
Patent: 32
Hunan Sheng, China
Patent: 31
Anhui University of Science & Technology
Anhui Sheng, China
Patent: 24
Shandong Sheng, China
Patent: 22
China University of Mining & Technology
Jiangsu Sheng, China
Patent: 21
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 17
Henan Polytechnic University
Henan Sheng, China
Patent: 15
Shanghai Shi, China
Patent: 14