With the analysis among 1,216 patents, we discovered top 469 key players by total patent application. Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd., Active Minerals International LLC, China Railway Jianzhu Group Co., Ltd. are dominant in this area. They take 4.44% of the total patent filing.
Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd.
Beijing Shi, China
Patent: 15
Active Minerals International LLC
China Railway Jianzhu Group Co., Ltd.
Beijing Shi, China
Patent: 13
China Academy of Railway Sciences Group Co. Ltd.
Beijing Shi, China
Patent: 13
China Railway Siyuan Survey & Design Group Co., Ltd.
Hubei Sheng, China
Patent: 13
Zhuzhou Sibaorui Intelligent Equipment Co., Ltd.
Hunan Sheng, China
Patent: 11
Hunan Tianxiang Construction Technology Co., Ltd.
Hunan Sheng, China
Patent: 11
Tokyo-to, Japan
Patent: 10
China Railway 11th Bureau Group Corp., Ltd.
Hubei Sheng, China
Patent: 10
Chang Sha Ju Xing Qing Zhi Jian Cai Gu Fen You Xian Gong Si
Hunan Sheng, China
Patent: 10
No data, please try another search term
With the analysis among related 891 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Tsinghua University, Central South University, China Railway Siyuan Survey & Design Group Co., Ltd. take 5.72% of patent filing during this period.
Beijing Shi, China
Patent: 21
Hunan Sheng, China
Patent: 17
China Railway Siyuan Survey & Design Group Co., Ltd.
Hubei Sheng, China
Patent: 13
Zhuzhou Sibaorui Intelligent Equipment Co., Ltd.
Hunan Sheng, China
Patent: 11
Chongqing Jiaotong University
Chongqing Shi, China
Patent: 11
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 10
Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd.
Beijing Shi, China
Patent: 9
China Academy of Railway Sciences Group Co. Ltd.
Beijing Shi, China
Patent: 8
CCCC Fourth Harbor Engineering Co., Ltd.
Guangdong Sheng, China
Patent: 8
Guangdong Provincial ChangDa Highway Engineering Co. Ltd.
Guangdong Sheng, China
Patent: 8
With the analysis among related 891 patents in last 5 years, we discover 398 new entrants. China Railway Siyuan Survey & Design Group Co., Ltd., Zhuzhou Sibaorui Intelligent Equipment Co., Ltd., Guangdong Provincial ChangDa Highway Engineering Co. Ltd. are the most active new entrants in this area.
China Railway Siyuan Survey & Design Group Co., Ltd.
Hubei Sheng, China
Patent: 13
Zhuzhou Sibaorui Intelligent Equipment Co., Ltd.
Hunan Sheng, China
Patent: 11
Guangdong Provincial ChangDa Highway Engineering Co. Ltd.
Guangdong Sheng, China
Patent: 8
China Institute of Water Resources and Hydropower Research
undefined undefined
Patent: 6
Jiangxi University of Technology
Jiangxi Sheng, China
Patent: 6
China First Metallurgical Construction Co., Ltd.
Hubei Sheng, China
Patent: 6
Beijing Tieke Special Engineering Technology Co., Ltd.
Beijing Shi, China
Patent: 5
Powerchina Road Bridge Group Co., Ltd.
Beijing Shi, China
Patent: 5
Zhongshui North Survey, Design and Research Co., Ltd.
Tianjin Shi, China
Patent: 5
Beijing Hongruijia Technology Development Co., Ltd.
Beijing Shi, China
Patent: 4
With the analysis among 451 patents, we discovered top 107 universities and scientific research institutions by total patent application. Central South University, Tsinghua University, Southwest Jiaotong University are dominant in this area. They take 21.73% of the total patent filing.
Hunan Sheng, China
Patent: 41
Beijing Shi, China
Patent: 30
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 18
Nanjing University of Technology
Jiangsu Sheng, China
Patent: 14
Shaanxi Sheng, China
Patent: 13
Chongqing Jiaotong University
Chongqing Shi, China
Patent: 13
Shenyang Jianzhu University
Liaoning Sheng, China
Patent: 11
Shanghai Shi, China
Patent: 10
Hubei Sheng, China
Patent: 10
South China University of Technology
Guangdong Sheng, China
Patent: 8