With the analysis among 382 patents, we discovered top 292 key players by total patent application. Kajima Corp., Shimizu Corp., State Grid Corp. of China are dominant in this area. They take 4.97% of the total patent filing.
Jiangsu Sheng, China
Patent: 7
Beijing Shi, China
Patent: 6
Jiangsu Sheng, China
Patent: 6
Shanghai Shi, China
Patent: 6
Shanghai Shi, China
Patent: 4
Tianjin Shi, China
Patent: 4
Shanghai Shi, China
Patent: 4
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With the analysis among related 206 patents applied in the last 5 years. We discover 189 most active companies in this area. The fast-growing Capital Normal University, Shanghai Tunnel Industrial Co., Ltd., China First Metallurgical Construction Co., Ltd. take 6.80% of patent filing during this period.
Beijing Shi, China
Patent: 7
Shanghai Shi, China
Patent: 4
Hubei Sheng, China
Patent: 3
Hebei Sheng, China
Patent: 3
Jawa Tengah, Indonesia
Patent: 3
Hubei Sheng, China
Patent: 3
Fujian Sheng, China
Patent: 2
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Patent: 2
Jiangsu Sheng, China
Patent: 2
Shandong Sheng, China
Patent: 2
With the analysis among related 206 patents in last 5 years, we discover 172 new entrants. China First Metallurgical Construction Co., Ltd., China Railway Tunnel Group Erchu Co., Ltd., Universitas Diponegoro are the most active new entrants in this area.
Hubei Sheng, China
Patent: 3
Hebei Sheng, China
Patent: 3
Jawa Tengah, Indonesia
Patent: 3
Hubei Sheng, China
Patent: 3
Fujian Sheng, China
Patent: 2
Shandong Sheng, China
Patent: 2
Anhui Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
Shanghai Shi, China
Patent: 2
With the analysis among 131 patents, we discovered top 51 universities and scientific research institutions by total patent application. Capital Normal University, Tongji University, Hohai University are dominant in this area. They take 16.03% of the total patent filing.
Beijing Shi, China
Patent: 10
Shanghai Shi, China
Patent: 6
Jiangsu Sheng, China
Patent: 4
Tianjin Shi, China
Patent: 4
Shandong Sheng, China
Patent: 3
Hunan Sheng, China
Patent: 3
Jawa Tengah, Indonesia
Patent: 3
Jiangsu Sheng, China
Patent: 3
Beijing Shi, China
Patent: 2
Sichuan Sheng, China
Patent: 2