With the analysis among 74 patents, we discovered top 47 key players by total patent application. Westinghouse Electric Co. LLC, National Steel Car Ltd., Changshu Switch Manufacture Co. Ltd. Yuan Changshu Switch Fact are dominant in this area. They take 24.32% of the total patent filing.
Gansu Sheng, China
Patent: 9
Jiangsu Sheng, China
Patent: 4
Tianjin Shi, China
Patent: 3
Chongqing Shi, China
Patent: 2
Hubei Sheng, China
Patent: 2
Chongqing Shi, China
Patent: 2
Beijing Shi, China
Patent: 2
Tianjin Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
No data, please try another search term
With the analysis among related 38 patents applied in the last 5 years. We discover 26 most active companies in this area. The fast-growing Fuzhou University, Hunan University of Science & Technology, Xi'an University of Architecture & Technology take 23.68% of patent filing during this period.
Fujian Sheng, China
Patent: 3
Hunan Sheng, China
Patent: 3
Shaanxi Sheng, China
Patent: 3
Chongqing Shi, China
Patent: 2
Chongqing Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
Hunan Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2
Hubei Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2
With the analysis among related 38 patents in last 5 years, we discover 23 new entrants. Fuzhou University, Hunan University of Science & Technology, Xi'an University of Architecture & Technology are the most active new entrants in this area.
Fujian Sheng, China
Patent: 3
Hunan Sheng, China
Patent: 3
Shaanxi Sheng, China
Patent: 3
Chongqing Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
Hunan Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2
Hubei Sheng, China
Patent: 2
Chongqing Shi, China
Patent: 2
Beijing Shi, China
Patent: 2
With the analysis among 25 patents, we discovered top 13 universities and scientific research institutions by total patent application. Hunan University of Science & Technology, Xi'an University of Architecture & Technology, Fuzhou University are dominant in this area. They take 36.00% of the total patent filing.
Hunan Sheng, China
Patent: 3
Shaanxi Sheng, China
Patent: 3
Fujian Sheng, China
Patent: 3
Shaanxi Sheng, China
Patent: 2
Liaoning Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Shanghai Shi, China
Patent: 1
Sichuan Sheng, China
Patent: 1
Jiangsu Sheng, China
Patent: 1
Anhui Sheng, China
Patent: 1