With the analysis among 6,823 patents, we discovered top 490 key players by total patent application. China Construction Eighth Engineering Division Corp. Ltd., China Construction Second Engineering Bureau Co., Ltd., TAISEI Corp. are dominant in this area. They take 3.27% of the total patent filing.
Shanghai Shi, China
Patent: 88
Beijing Shi, China
Patent: 76
Tokyo-to, Japan
Patent: 59
Jiangsu Sheng, China
Patent: 57
Anhui Sheng, China
Patent: 56
Tokyo-to, Japan
Patent: 51
Shanghai Shi, China
Patent: 51
Jiangsu Sheng, China
Patent: 44
Bayern, Germany
Patent: 42
With the analysis among 1 patents, we discovered top 1 start-ups by total patent application.
Uttar Pradesh, India
Patent: 1
With the analysis among related 2,337 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China Construction Second Engineering Bureau Co., Ltd., China Construction Eighth Engineering Division Corp. Ltd., Chinese Metallurgical Group Co., Ltd. take 4.45% of patent filing during this period.
Beijing Shi, China
Patent: 42
Shanghai Shi, China
Patent: 35
Anhui Sheng, China
Patent: 27
Hebei Sheng, China
Patent: 25
Shanghai Shi, China
Patent: 20
Shanghai Shi, China
Patent: 19
Hubei Sheng, China
Patent: 18
Sichuan Sheng, China
Patent: 17
Beijing Shi, China
Patent: 15
Beijing Shi, China
Patent: 14
With the analysis among related 2,337 patents in last 5 years, we discover 297 new entrants. China Railway Siyuan Survey & Design Group Co., Ltd., Sinohydro Bureau 11 Co., Ltd., China Railway First Survey & Design Institute Group Co., Ltd. are the most active new entrants in this area.
Hubei Sheng, China
Patent: 18
Henan Sheng, China
Patent: 10
Shaanxi Sheng, China
Patent: 9
Vestfold, Norway
Patent: 9
Henan Sheng, China
Patent: 9
Guangdong Sheng, China
Patent: 7
Guangdong Sheng, China
Patent: 6
Guangdong Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Liaoning Sheng, China
Patent: 5
With the analysis among 370 patents, we discovered top 113 universities and scientific research institutions by total patent application. Shandong University, Zhejiang University, Shandong University of Science & Technology are dominant in this area. They take 5.95% of the total patent filing.
Shandong Sheng, China
Patent: 8
Zhejiang Sheng, China
Patent: 8
Shandong Sheng, China
Patent: 6
Liaoning Sheng, China
Patent: 5
Sichuan Sheng, China
Patent: 5
Jiangsu Sheng, China
Patent: 5
Beijing Shi, China
Patent: 4
Fujian Sheng, China
Patent: 4
Zhejiang Sheng, China
Patent: 4
Anhui Sheng, China
Patent: 4