With the analysis among 5,188 patents, we discovered top 459 key players by total patent application. China Railway Siyuan Survey & Design Group Co., Ltd., Powerchina Huadong Engineering Corp. Ltd., Powerchina Chengdu Engineering Corp. Ltd. are dominant in this area. They take 3.64% of the total patent filing.
Hubei Sheng, China
Patent: 73
Zhejiang Sheng, China
Patent: 61
Sichuan Sheng, China
Patent: 55
Guizhou Sheng, China
Patent: 41
Beijing Shi, China
Patent: 40
Beijing Shi, China
Patent: 38
Sichuan Sheng, China
Patent: 38
Texas, United States
Patent: 32
Beijing Shi, China
Patent: 28
Shaanxi Sheng, China
Patent: 24
With the analysis among 15 patents, we discovered top 13 start-ups by total patent application. Merito, Inc., EOS Srl, TerraPower LLC are active in this area.
North Carolina, United States
Patent: 3
Lombardia, Italy
Patent: 1
Washington, United States
Patent: 1
Human Technopole Foundation
Lombardia, Italy
Patent: 1
Zhejiang Sheng, China
Patent: 1
New York, United States
Patent: 1
Sichuan Sheng, China
Patent: 1
New Mexico, United States
Patent: 1
Hubei Sheng, China
Patent: 1
With the analysis among related 1,789 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China Railway Siyuan Survey & Design Group Co., Ltd., China Railway Eryuan Engineering Group Co., Ltd., Southwest Jiaotong University take 2.91% of patent filing during this period.
Hubei Sheng, China
Patent: 22
Sichuan Sheng, China
Patent: 16
Sichuan Sheng, China
Patent: 14
Sichuan Sheng, China
Patent: 13
Liaoning Sheng, China
Patent: 12
Shandong Sheng, China
Patent: 12
Shaanxi Sheng, China
Patent: 12
Jiangsu Sheng, China
Patent: 12
Hunan Sheng, China
Patent: 12
Sichuan Sheng, China
Patent: 12
With the analysis among related 1,789 patents in last 5 years, we discover 266 new entrants. Xiangtan University, China Construction Airline (Beijing) Technology Co., Ltd., Yugreat (Beijing) International Technology Co. Ltd. are the most active new entrants in this area.
Hunan Sheng, China
Patent: 4
Beijing Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Yunnan Sheng, China
Patent: 3
Liaoning Sheng, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Shandong Sheng, China
Patent: 3
Beijing Shi, China
Patent: 3
Sichuan Resonance Road Engineering Co., Ltd.
Sichuan Sheng, China
Patent: 3
With the analysis among 2,721 patents, we discovered top 262 universities and scientific research institutions by total patent application. China University of Mining & Technology, Southwest Jiaotong University, Hohai University are dominant in this area. They take 5.40% of the total patent filing.
Jiangsu Sheng, China
Patent: 52
Sichuan Sheng, China
Patent: 51
Jiangsu Sheng, China
Patent: 42
Jilin Sheng, China
Patent: 37
Shandong Sheng, China
Patent: 37
Shaanxi Sheng, China
Patent: 37
Tianjin Shi, China
Patent: 37
Shandong Sheng, China
Patent: 36
Hunan Sheng, China
Patent: 34
Zhejiang Sheng, China
Patent: 34