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.
Beijing Shi, China
Patent: 15
Beijing Shi, China
Patent: 13
Beijing Shi, China
Patent: 13
Hubei Sheng, China
Patent: 13
Hunan Sheng, China
Patent: 11
Hunan Sheng, China
Patent: 11
Tokyo-to, Japan
Patent: 10
Hubei Sheng, China
Patent: 10
Hunan Sheng, China
Patent: 10
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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
Hubei Sheng, China
Patent: 13
Hunan Sheng, China
Patent: 11
Chongqing Shi, China
Patent: 11
Sichuan Sheng, China
Patent: 10
Beijing Shi, China
Patent: 9
Beijing Shi, China
Patent: 8
Guangdong Sheng, China
Patent: 8
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.
Hubei Sheng, China
Patent: 13
Hunan Sheng, China
Patent: 11
Guangdong Sheng, China
Patent: 8
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Patent: 6
Jiangxi Sheng, China
Patent: 6
Hubei Sheng, China
Patent: 6
Beijing Shi, China
Patent: 5
Beijing Shi, China
Patent: 5
Tianjin Shi, China
Patent: 5
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
Sichuan Sheng, China
Patent: 18
Jiangsu Sheng, China
Patent: 14
Shaanxi Sheng, China
Patent: 13
Chongqing Shi, China
Patent: 13
Liaoning Sheng, China
Patent: 11
Shanghai Shi, China
Patent: 10
Hubei Sheng, China
Patent: 10
Guangdong Sheng, China
Patent: 8