With the analysis among 1,819 patents, we discovered top 474 key players by total patent application. China Railway Siyuan Survey & Design Group Co., Ltd., Shanghai Municipal Engineering Design Inst (Group) Co., Ltd., Fuzhou Gulou District Qiyuntong Automation Equipment Co., Ltd. are dominant in this area. They take 5.66% of the total patent filing.
Hubei Sheng, China
Patent: 37
Shanghai Shi, China
Patent: 33
Fujian Sheng, China
Patent: 33
Guangxi Zhuangzu Zizhiqu, China
Patent: 25
Beijing Shi, China
Patent: 18
Sichuan Sheng, China
Patent: 17
Hunan Sheng, China
Patent: 15
Beijing Shi, China
Patent: 13
China Railway Major Bridge Engineering Group Co., Ltd.
Hubei Sheng, China
Patent: 13
Shanghai Shi, China
Patent: 13
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With the analysis among related 1,165 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Shanghai Municipal Engineering Design Inst (Group) Co., Ltd., China Railway Siyuan Survey & Design Group Co., Ltd., China Road & Bridge Engineering Co. Ltd. take 5.06% of patent filing during this period.
Shanghai Shi, China
Patent: 23
Hubei Sheng, China
Patent: 20
Beijing Shi, China
Patent: 16
Beijing Shi, China
Patent: 16
Jiangsu Sheng, China
Patent: 13
Guangxi Zhuangzu Zizhiqu, China
Patent: 13
Sichuan Sheng, China
Patent: 13
Shandong Sheng, China
Patent: 13
Hunan Sheng, China
Patent: 12
Gansu Sheng, China
Patent: 11
With the analysis among related 1,165 patents in last 5 years, we discover 374 new entrants. Shandong Jiaotong University, Gansu Province Transportation Planning Survey & Design Inst, Liaoning Communication Survey & Design Institute are the most active new entrants in this area.
Shandong Sheng, China
Patent: 13
Gansu Sheng, China
Patent: 11
Liaoning Sheng, China
Patent: 10
Guizhou Sheng, China
Patent: 9
Beijing Shi, China
Patent: 8
Shanghai Shi, China
Patent: 8
Heilongjiang Sheng, China
Patent: 7
Anhui Sheng, China
Patent: 7
Henan Sheng, China
Patent: 7
Zhejiang Sheng, China
Patent: 7
With the analysis among 615 patents, we discovered top 101 universities and scientific research institutions by total patent application. Chongqing Jiaotong University, Southeast University, Fuzhou University are dominant in this area. They take 13.98% of the total patent filing.
Chongqing Shi, China
Patent: 36
Jiangsu Sheng, China
Patent: 27
Fujian Sheng, China
Patent: 23
Shaanxi Sheng, China
Patent: 22
Beijing Shi, China
Patent: 21
Shanghai Shi, China
Patent: 19
Hunan Sheng, China
Patent: 16
Zhejiang Sheng, China
Patent: 15
Sichuan Sheng, China
Patent: 13
Hebei Sheng, China
Patent: 13