With the analysis among 557 patents, we discovered top 229 key players by total patent application. Westinghouse Brake & Signal Co. Ltd., Dr. Ing. h.c. F. Porsche AG, Hitachi Ltd. are dominant in this area. They take 5.39% of the total patent filing.
Baden-Württemberg, Germany
Patent: 10
Mitsubishi Heavy Industries, Ltd.
Fukushima-ken, Japan
Patent: 7
Baden-Württemberg, Germany
Patent: 6
With the analysis among 3 patents, we discovered top 2 start-ups by total patent application.
New York, United States
Patent: 2
With the analysis among related 4 patents applied in the last 5 years. We discover 3 most active companies in this area.
Jiangsu Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
With the analysis among related 4 patents in last 5 years, we discover 3 new entrants.
Jiangsu Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
With the analysis among 14 patents, we discovered top 7 universities and scientific research institutions by total patent application. Railway Technical Research Institute, RWTH Aachen University, Tsinghua University are dominant in this area. They take 35.71% of the total patent filing.
Nordrhein-Westfalen, Germany
Patent: 1
Beijing Shi, China
Patent: 1
Jiangsu Sheng, China
Patent: 1
Beijing Shi, China
Patent: 1
Jiangsu Sheng, China
Patent: 1
Hunan Sheng, China
Patent: 1