With the analysis among 8,706 patents, we discovered top 475 key players by total patent application. Dyckerhoff & Widmann AG, TAISEI Corp., Kajima Corp. are dominant in this area. They take 3.66% of the total patent filing.
Tokyo-to, Japan
Patent: 70
Jiangsu Sheng, China
Patent: 68
Osaka-fu, Japan
Patent: 66
Tianjin Shi, China
Patent: 66
Hyogo-ken, Japan
Patent: 64
Tokyo-to, Japan
Patent: 54
Xinjiang Uygur Zizhiqu, China
Patent: 54
Jiangsu Sheng, China
Patent: 54
With the analysis among 5 patents, we discovered top 2 start-ups by total patent application.
New York, United States
Patent: 3
North Carolina, United States
Patent: 2
With the analysis among related 2,686 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Xinjiang Guotong Pipeline Co., Ltd., Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd., Chongqing University take 3.05% of patent filing during this period.
Xinjiang Uygur Zizhiqu, China
Patent: 33
Beijing Shi, China
Patent: 28
Chongqing Shi, China
Patent: 21
Jiangsu Sheng, China
Patent: 18
Hubei Sheng, China
Patent: 18
Tianjin Shi, China
Patent: 18
Liaoning Sheng, China
Patent: 16
Shanghai Shi, China
Patent: 16
Anhui Sheng, China
Patent: 15
Henan Sheng, China
Patent: 15
With the analysis among related 2,686 patents in last 5 years, we discover 311 new entrants. China Railway Ninth Bureau Group Co., Ltd., Henan Fuchen Pipe Industry Co., Ltd., Fujian Dali Pipe Pile Co. Ltd. are the most active new entrants in this area.
Liaoning Sheng, China
Patent: 16
Henan Sheng, China
Patent: 15
Fujian Sheng, China
Patent: 15
Guangdong Sheng, China
Patent: 13
Hebei Sheng, China
Patent: 12
Henan Sheng, China
Patent: 11
Guangdong Sheng, China
Patent: 10
Shandong Sheng, China
Patent: 10
Beijing Shi, China
Patent: 9
Zhejiang Sheng, China
Patent: 9
With the analysis among 1,020 patents, we discovered top 150 universities and scientific research institutions by total patent application. Southeast University, Tongji University, Chongqing Jiaotong University are dominant in this area. They take 12.16% of the total patent filing.
Jiangsu Sheng, China
Patent: 51
Shanghai Shi, China
Patent: 32
Chongqing Shi, China
Patent: 28
Shaanxi Sheng, China
Patent: 24
Chongqing Shi, China
Patent: 22
Shandong Sheng, China
Patent: 20
Beijing Shi, China
Patent: 20
Hunan Sheng, China
Patent: 17
Jiangsu Sheng, China
Patent: 16
Hubei Sheng, China
Patent: 15