With the analysis among 877 patents, we discovered top 447 key players by total patent application. Powerchina Chengdu Engineering Corp. Ltd., Powerchina Huadong Engineering Corp. Ltd., China Railway Eryuan Engineering Group Co., Ltd. are dominant in this area. They take 6.50% of the total patent filing.
Sichuan Sheng, China
Patent: 21
Zhejiang Sheng, China
Patent: 21
Sichuan Sheng, China
Patent: 15
Guizhou Sheng, China
Patent: 13
Yunnan Sheng, China
Patent: 13
Beijing Shi, China
Patent: 10
Guangdong Sheng, China
Patent: 10
Liaoning Sheng, China
Patent: 10
Anhui Sheng, China
Patent: 8
No data, please try another search term
With the analysis among related 932 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Powerchina Huadong Engineering Corp. Ltd., China University of Geosciences Beijing, China Nonferrous Metals Industry Kunming Survey and Design Research Institute Co., Ltd. take 4.51% of patent filing during this period.
Zhejiang Sheng, China
Patent: 15
Hubei Sheng, China
Patent: 14
Yunnan Sheng, China
Patent: 13
Yunnan Sheng, China
Patent: 13
Sichuan Sheng, China
Patent: 12
Beijing Shi, China
Patent: 10
Liaoning Sheng, China
Patent: 10
Sichuan Sheng, China
Patent: 10
Guangdong Sheng, China
Patent: 10
undefined undefined
Patent: 9
With the analysis among related 932 patents in last 5 years, we discover 428 new entrants. China Nonferrous Metals Industry Kunming Survey and Design Research Institute Co., Ltd., China Academy of Railway Sciences Group Co. Ltd., Dalian Dituo Environmental Technology Co., Ltd. are the most active new entrants in this area.
Yunnan Sheng, China
Patent: 13
Beijing Shi, China
Patent: 10
Liaoning Sheng, China
Patent: 10
Guangdong Sheng, China
Patent: 10
Sichuan Sheng, China
Patent: 9
Anhui Sheng, China
Patent: 6
Yunnan Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Shandong Sheng, China
Patent: 5
Guizhou Sheng, China
Patent: 5
With the analysis among 464 patents, we discovered top 105 universities and scientific research institutions by total patent application. Kunming University of Science & Technology, Sichuan University, China University of Geosciences Beijing are dominant in this area. They take 12.72% of the total patent filing.
Yunnan Sheng, China
Patent: 24
Sichuan Sheng, China
Patent: 17
Hubei Sheng, China
Patent: 16
Chongqing Shi, China
Patent: 11
Chongqing Shi, China
Patent: 11
Liaoning Sheng, China
Patent: 11
Hunan Sheng, China
Patent: 10
Jiangsu Sheng, China
Patent: 10
Zhejiang Sheng, China
Patent: 9
Hubei Sheng, China
Patent: 9