With the analysis among 138 patents, we discovered top 99 key players by total patent application. China Railway Siyuan Survey & Design Group Co., Ltd., China Communications First Public Bureau Group Co., Ltd., Shanghai Municipal Engineering Design Inst (Group) Co., Ltd. are dominant in this area. They take 7.25% of the total patent filing.
Hubei Sheng, China
Patent: 4
Beijing Shi, China
Patent: 3
Shanghai Shi, China
Patent: 3
Guangxi Zhuangzu Zizhiqu, China
Patent: 3
Sichuan Sheng, China
Patent: 3
Aichi-ken, Japan
Patent: 2
Shanghai Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
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With the analysis among related 81 patents applied in the last 5 years. We discover 70 most active companies in this area. The fast-growing Cccc No 4 Engineering Co Ltd., Shanghai Municipal Engineering Design Inst (Group) Co., Ltd., China Communications First Public Bureau Group Co., Ltd. take 9.88% of patent filing during this period.
Guangxi Zhuangzu Zizhiqu, China
Patent: 3
Shanghai Shi, China
Patent: 3
Beijing Shi, China
Patent: 2
Beijing Shi, China
Patent: 2
Shaanxi Sheng, China
Patent: 2
Zhejiang Sheng, China
Patent: 2
Hunan Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
With the analysis among related 81 patents in last 5 years, we discover 64 new entrants. Cccc No 4 Engineering Co Ltd., Shanghai Municipal Engineering Design Inst (Group) Co., Ltd., CCCC North China Engineering Co., Ltd. are the most active new entrants in this area.
Guangxi Zhuangzu Zizhiqu, China
Patent: 3
Shanghai Shi, China
Patent: 3
Beijing Shi, China
Patent: 2
Shaanxi Sheng, China
Patent: 2
Zhejiang Sheng, China
Patent: 2
Hunan Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
Shanghai Shi, China
Patent: 2
Shandong Sheng, China
Patent: 2
With the analysis among 25 patents, we discovered top 17 universities and scientific research institutions by total patent application. Chang'an University, Hunan University, Luoyang Institute of Science & Technology are dominant in this area. They take 28.00% of the total patent filing.
Shaanxi Sheng, China
Patent: 3
Hunan Sheng, China
Patent: 2
Henan Sheng, China
Patent: 2
Shandong Sheng, China
Patent: 2
Jiangxi Sheng, China
Patent: 1
Guizhou Sheng, China
Patent: 1
Liaoning Sheng, China
Patent: 1
Sichuan Sheng, China
Patent: 1
Shandong Sheng, China
Patent: 1