With the analysis among 1,013 patents, we discovered top 478 key players by total patent application. Yunnan Dahongshan Tunnel Co. Ltd., China Coal Science and Industry Group Wuhan Design and Research Institute Co., Ltd., Shell Oil Co. are dominant in this area. They take 13.82% of the total patent filing.
Yunnan Dahongshan Tunnel Co. Ltd.
Yunnan Sheng, China
Patent: 78
China Coal Science and Industry Group Wuhan Design and Research Institute Co., Ltd.
Hubei Sheng, China
Patent: 41
Texas, United States
Patent: 21
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 13
Texas, United States
Patent: 10
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 10
Shaanxi Shen-Wei Coal Pipeline Transportation Co., Ltd.
Shaanxi Sheng, China
Patent: 10
Beijing Huadian Zhongbang Materiel Transfer System Co. Ltd.
Beijing Shi, China
Patent: 8
Huadian Environmental System Engineering Co., Ltd.
Beijing Shi, China
Patent: 8
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With the analysis among related 568 patents applied in the last 5 years. We discover 437 most active companies in this area. The fast-growing China Railway Engineering Equipment Group Co., Ltd., China Railway Tunnel Bureau Group Co., Ltd., Beijing Huadian Zhongbang Materiel Transfer System Co. Ltd. take 4.93% of patent filing during this period.
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 11
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 9
Beijing Huadian Zhongbang Materiel Transfer System Co. Ltd.
Beijing Shi, China
Patent: 8
Shaanxi Shen-Wei Coal Pipeline Transportation Co., Ltd.
Shaanxi Sheng, China
Patent: 8
Huadian Environmental System Engineering Co., Ltd.
Beijing Shi, China
Patent: 8
Yunnan Dahongshan Tunnel Co. Ltd.
Yunnan Sheng, China
Patent: 7
China Coal Science and Industry Group Wuhan Design and Research Institute Co., Ltd.
Hubei Sheng, China
Patent: 7
Sichuan Tianyi Petrochemical Engineering Co., Ltd.
Sichuan Sheng, China
Patent: 7
China Railway Tunnel Co Ltd.
Henan Sheng, China
Patent: 6
With the analysis among related 568 patents in last 5 years, we discover 392 new entrants. Beijing Huadian Zhongbang Materiel Transfer System Co. Ltd., Huadian Environmental System Engineering Co., Ltd., Sichuan Tianyi Petrochemical Engineering Co., Ltd. are the most active new entrants in this area.
Beijing Huadian Zhongbang Materiel Transfer System Co. Ltd.
Beijing Shi, China
Patent: 8
Huadian Environmental System Engineering Co., Ltd.
Beijing Shi, China
Patent: 8
Sichuan Tianyi Petrochemical Engineering Co., Ltd.
Sichuan Sheng, China
Patent: 7
China Railway Tunnel Co Ltd.
Henan Sheng, China
Patent: 6
Xi'an Thermal Power Research Institute Co., Ltd.
Shaanxi Sheng, China
Patent: 5
Hebei Gundam Intelligent Equipment Co., Ltd.
Hebei Sheng, China
Patent: 5
China ENFI Engineering Corp.
Beijing Shi, China
Patent: 5
China Coal Energy Research Institute Co., Ltd.
Shaanxi Sheng, China
Patent: 4
Hefei Guoxuan High-Tech Power Energy Co., Ltd.
Anhui Sheng, China
Patent: 4
With the analysis among 143 patents, we discovered top 48 universities and scientific research institutions by total patent application. University of Science & Technology Beijing, Kunming University of Science & Technology, Shenyang University are dominant in this area. They take 14.69% of the total patent filing.
University of Science & Technology Beijing
Beijing Shi, China
Patent: 8
Kunming University of Science & Technology
Yunnan Sheng, China
Patent: 7
Liaoning Sheng, China
Patent: 6
Shandong Sheng, China
Patent: 5
North China University of Science & Technology
Hebei Sheng, China
Patent: 5
Anhui University of Science & Technology
Anhui Sheng, China
Patent: 3
Southwest Petroleum University
Sichuan Sheng, China
Patent: 3
Shanghai Shi, China
Patent: 2
Zhejiang Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2