With the analysis among 639 patents, we discovered top 428 key players by total patent application. Powerchina Huadong Engineering Corp. Ltd., Powerchina Chengdu Engineering Corp. Ltd., Powerchina Guiyang Engineering Corp. Ltd. are dominant in this area. They take 4.38% of the total patent filing.
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 14
Powerchina Chengdu Engineering Corp. Ltd.
Sichuan Sheng, China
Patent: 7
Powerchina Guiyang Engineering Corp. Ltd.
Guizhou Sheng, China
Patent: 7
Shingang Hi-Tech Co., Ltd.
Huatian Engineering & Technology Corp.
Anhui Sheng, China
Patent: 4
China Metallurgical Huatian Nanjing Engineering Technology Co., Ltd.
Jiangsu Sheng, China
Patent: 4
Chongqing Zhongli Hydropower Development Co., Ltd.
Chongqing Shi, China
Patent: 4
Zhengzhou Yuheng Environmental Protection Technology Co., Ltd.
Henan Sheng, China
Patent: 4
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With the analysis among related 384 patents applied in the last 5 years. We discover 277 most active companies in this area. The fast-growing Powerchina Huadong Engineering Corp. Ltd., Hohai University, China Institute of Water Resources and Hydropower Research take 5.47% of patent filing during this period.
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 10
Jiangsu Sheng, China
Patent: 6
China Institute of Water Resources and Hydropower Research
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Patent: 5
Huatian Engineering & Technology Corp.
Anhui Sheng, China
Patent: 4
China Metallurgical Huatian Nanjing Engineering Technology Co., Ltd.
Jiangsu Sheng, China
Patent: 4
Guangzhou Municipal Engineering Design & Research Institute
Guangdong Sheng, China
Patent: 3
Xi'an Quality Information Technology Co., Ltd.
Shaanxi Sheng, China
Patent: 3
Yunnan Agricultural University
Yunnan Sheng, China
Patent: 3
Chongqing Jiaotong University
Chongqing Shi, China
Patent: 3
Tianjin Shi, China
Patent: 3
With the analysis among related 384 patents in last 5 years, we discover 245 new entrants. Huatian Engineering & Technology Corp., China Metallurgical Huatian Nanjing Engineering Technology Co., Ltd., Guangzhou Municipal Engineering Design & Research Institute are the most active new entrants in this area.
Huatian Engineering & Technology Corp.
Anhui Sheng, China
Patent: 4
China Metallurgical Huatian Nanjing Engineering Technology Co., Ltd.
Jiangsu Sheng, China
Patent: 4
Guangzhou Municipal Engineering Design & Research Institute
Guangdong Sheng, China
Patent: 3
Xi'an Quality Information Technology Co., Ltd.
Shaanxi Sheng, China
Patent: 3
Zhongshui North Survey, Design and Research Co., Ltd.
Tianjin Shi, China
Patent: 2
China Construction Third Bureau Green Industry Investment Co., Ltd.
Hubei Sheng, China
Patent: 2
Research Center For Eco-Environmental Sciences
Beijing Shi, China
Patent: 2
Qingdao University of Technology
Shandong Sheng, China
Patent: 2
Guizhou Qianyuan Power Co., Ltd.
Guizhou Sheng, China
Patent: 2
Yellow River Reconnaissance Planning & Design Co. Ltd.
Henan Sheng, China
Patent: 2
With the analysis among 262 patents, we discovered top 72 universities and scientific research institutions by total patent application. Hohai University, Zhejiang University, Beijing Forestry University are dominant in this area. They take 11.45% of the total patent filing.
Jiangsu Sheng, China
Patent: 14
Zhejiang Sheng, China
Patent: 6
Beijing Forestry University
Beijing Shi, China
Patent: 6
Yunnan Agricultural University
Yunnan Sheng, China
Patent: 6
Chongqing Shi, China
Patent: 6
Tianjin Shi, China
Patent: 6
Chongqing Jiaotong University
Chongqing Shi, China
Patent: 5
Guizhou Normal University
Guizhou Sheng, China
Patent: 5
Beijing Normal University
Beijing Shi, China
Patent: 4
Hubei Sheng, China
Patent: 4