With the analysis among 1,539 patents, we discovered top 486 key players by total patent application. Matsushita Electronics Corp., Hitachi Ltd., Sanden Corp. are dominant in this area. They take 7.02% of the total patent filing.
Osaka-fu, Japan
Patent: 57
Tokyo-to, Japan
Patent: 26
California, United States
Patent: 22
Fukuoka-ken, Japan
Patent: 20
Tokyo-to, Japan
Patent: 20
Aichi-ken, Japan
Patent: 13
Tokyo-to, Japan
Patent: 11
Aichi-ken, Japan
Patent: 11
With the analysis among 5 patents, we discovered top 4 start-ups by total patent application. Wellthy Corp., Beijing Terminus Technology Group Co.,. Ltd., Aisin KK are active in this area.
Beijing Shi, China
Patent: 1
Shaanxi Sheng, China
Patent: 1
With the analysis among related 906 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China Institute of Water Resources and Hydropower Research, Hohai University, North China Municipal Engineering Design & Research Institute take 3.20% of patent filing during this period.
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Patent: 11
Jiangsu Sheng, China
Patent: 11
Tianjin Shi, China
Patent: 7
Hubei Sheng, China
Patent: 7
Sichuan Sheng, China
Patent: 7
Hubei Sheng, China
Patent: 7
Jiangsu Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Shanghai Shi, China
Patent: 5
Jiangxi Sheng, China
Patent: 5
With the analysis among related 906 patents in last 5 years, we discover 461 new entrants. North China Municipal Engineering Design & Research Institute, WISDRI Engineering & Research Inc. Ltd., China Metallurgical Southern Urban Construction Engineering Technology Co., Ltd. are the most active new entrants in this area.
Tianjin Shi, China
Patent: 7
Hubei Sheng, China
Patent: 7
Hubei Sheng, China
Patent: 7
Jiangsu Sheng, China
Patent: 6
Beijing Shi, China
Patent: 6
Jiangsu Sheng, China
Patent: 5
Jiangxi Sheng, China
Patent: 5
Hubei Sheng, China
Patent: 4
Hubei Sheng, China
Patent: 4
Shanghai Shi, China
Patent: 4
With the analysis among 369 patents, we discovered top 130 universities and scientific research institutions by total patent application. Hohai University, Shenyang Jianzhu University, Zhejiang University are dominant in this area. They take 12.20% of the total patent filing.
Jiangsu Sheng, China
Patent: 21
Liaoning Sheng, China
Patent: 8
Zhejiang Sheng, China
Patent: 7
Hubei Sheng, China
Patent: 7
Jiangxi Sheng, China
Patent: 7
Sichuan Sheng, China
Patent: 6
Shanghai Shi, China
Patent: 6
Jiangsu Sheng, China
Patent: 6
Chongqing Shi, China
Patent: 6
Shanghai Shi, China
Patent: 5