With the analysis among 339 patents, we discovered top 227 key players by total patent application. Powerchina Huadong Engineering Corp. Ltd., ChangJiang Survey, Planning, Design and Research Co., Ltd, Powerchina Chengdu Engineering Corp. Ltd. are dominant in this area. They take 9.73% of the total patent filing.
Zhejiang Sheng, China
Patent: 16
Hubei Sheng, China
Patent: 9
Sichuan Sheng, China
Patent: 8
Shanghai Shi, China
Patent: 6
Shanghai Shi, China
Patent: 6
Shanghai Shi, China
Patent: 6
Shanghai Shi, China
Patent: 5
Shanghai Shi, China
Patent: 4
Guangdong Sheng, China
Patent: 4
Guizhou Sheng, China
Patent: 4
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With the analysis among related 443 patents applied in the last 5 years. We discover 281 most active companies in this area. The fast-growing Powerchina Huadong Engineering Corp. Ltd., Hohai University, Powerchina Chengdu Engineering Corp. Ltd. take 8.13% of patent filing during this period.
Zhejiang Sheng, China
Patent: 16
Jiangsu Sheng, China
Patent: 12
Sichuan Sheng, China
Patent: 8
Jiangsu Sheng, China
Patent: 8
Hubei Sheng, China
Patent: 8
Shanghai Shi, China
Patent: 6
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Patent: 6
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Patent: 6
Liaoning Sheng, China
Patent: 5
Shanghai Shi, China
Patent: 5
With the analysis among related 443 patents in last 5 years, we discover 265 new entrants. Powerchina Huadong Engineering Corp. Ltd., Powerchina Chengdu Engineering Corp. Ltd., Shanghai Chongming Water Conservancy Engineering Co., Ltd. are the most active new entrants in this area.
Zhejiang Sheng, China
Patent: 16
Sichuan Sheng, China
Patent: 8
Shanghai Shi, China
Patent: 6
Liaoning Sheng, China
Patent: 5
Shanghai Shi, China
Patent: 5
Guangdong Sheng, China
Patent: 4
Shanghai Shi, China
Patent: 4
Shanghai Shi, China
Patent: 3
Tianjin Shi, China
Patent: 3
Zhejiang Sheng, China
Patent: 3
With the analysis among 134 patents, we discovered top 38 universities and scientific research institutions by total patent application. Hohai University, Wuhan University, Sichuan University are dominant in this area. They take 22.39% of the total patent filing.
Jiangsu Sheng, China
Patent: 13
Hubei Sheng, China
Patent: 6
Sichuan Sheng, China
Patent: 3
Hubei Sheng, China
Patent: 3
Chongqing Shi, China
Patent: 3
Anhui Sheng, China
Patent: 2
Shanghai Shi, China
Patent: 2
Sichuan Sheng, China
Patent: 2
Hunan Sheng, China
Patent: 2
Yunnan Sheng, China
Patent: 2