With the analysis among 231 patents, we discovered top 197 key players by total patent application. China Railway Engineering Equipment Group Co., Ltd., China Railway Engineering Services Co., Ltd., China Railway Construction Heavy Industry Corp. Ltd. are dominant in this area. They take 7.79% of the total patent filing.
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 7
China Railway Engineering Services Co., Ltd.
Sichuan Sheng, China
Patent: 6
China Railway Construction Heavy Industry Corp. Ltd.
Hunan Sheng, China
Patent: 5
Shenzhen Jian'an (Group) Co., Ltd.
Guangdong Sheng, China
Patent: 5
Jinan Rail Transit Group Co. Ltd.
Shandong Sheng, China
Patent: 5
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 5
AVIC Survey, Design & Research Institute Co., Ltd.
Beijing Shi, China
Patent: 4
China Railway Tenth Bureau Group First Engineering Co Ltd.
Shandong Sheng, China
Patent: 4
Beijing Urban Construction Group Co. Ltd.
Beijing Shi, China
Patent: 3
Manitoba, Canada
Patent: 3
With the analysis among 3 patents, we discovered top 1 start-ups by total patent application.
California, United States
Patent: 3
With the analysis among related 302 patents applied in the last 5 years. We discover 248 most active companies in this area. The fast-growing Central South University, Tongji University, China Railway Engineering Services Co., Ltd. take 8.28% of patent filing during this period.
Hunan Sheng, China
Patent: 10
Shanghai Shi, China
Patent: 9
China Railway Engineering Services Co., Ltd.
Sichuan Sheng, China
Patent: 6
China Railway Construction Heavy Industry Corp. Ltd.
Hunan Sheng, China
Patent: 5
Shenzhen Jian'an (Group) Co., Ltd.
Guangdong Sheng, China
Patent: 5
China Railway Engineering Equipment Group Co., Ltd.
Henan Sheng, China
Patent: 5
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 5
AVIC Survey, Design & Research Institute Co., Ltd.
Beijing Shi, China
Patent: 4
China Railway Tenth Bureau Group First Engineering Co Ltd.
Shandong Sheng, China
Patent: 4
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 4
With the analysis among related 302 patents in last 5 years, we discover 243 new entrants. Central South University, Tongji University, China Railway Engineering Services Co., Ltd. are the most active new entrants in this area.
Hunan Sheng, China
Patent: 10
Shanghai Shi, China
Patent: 9
China Railway Engineering Services Co., Ltd.
Sichuan Sheng, China
Patent: 6
China Railway Construction Heavy Industry Corp. Ltd.
Hunan Sheng, China
Patent: 5
Shenzhen Jian'an (Group) Co., Ltd.
Guangdong Sheng, China
Patent: 5
Powerchina Huadong Engineering Corp. Ltd.
Zhejiang Sheng, China
Patent: 5
AVIC Survey, Design & Research Institute Co., Ltd.
Beijing Shi, China
Patent: 4
China Railway Tenth Bureau Group First Engineering Co Ltd.
Shandong Sheng, China
Patent: 4
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 4
Jiangsu Sheng, China
Patent: 4
With the analysis among 99 patents, we discovered top 45 universities and scientific research institutions by total patent application. Central South University, Tongji University, Hohai University are dominant in this area. They take 24.24% of the total patent filing.
Hunan Sheng, China
Patent: 10
Shanghai Shi, China
Patent: 9
Jiangsu Sheng, China
Patent: 5
China University of Mining & Technology (Beijing)
Beijing Shi, China
Patent: 4
Jiangsu Sheng, China
Patent: 4
Shandong Sheng, China
Patent: 3
Beijing Jiaotong University
Beijing Shi, China
Patent: 3
Beijing Forestry University
Beijing Shi, China
Patent: 3
Southwest Jiaotong University
Sichuan Sheng, China
Patent: 3
Huazhong University of Science & Technology
Hubei Sheng, China
Patent: 2