With the analysis among 149 patents, we discovered top 97 key players by total patent application. China Petroleum & Chemical Corp., Beijing Wolfe Environmental Technology Co., Ltd., PetroChina Co., Ltd. are dominant in this area. They take 18.79% of the total patent filing.
Beijing Shi, China
Patent: 10
Beijing Shi, China
Patent: 7
Beijing Shi, China
Patent: 6
Zhejiang Sheng, China
Patent: 5
Jiangsu Sheng, China
Patent: 4
Beijing Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Beijing Shi, China
Patent: 3
Henan Sheng, China
Patent: 3
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With the analysis among related 62 patents applied in the last 5 years. We discover 31 most active companies in this area. The fast-growing Zhejiang University, Nanjing University, Beijing University of Chemical Technology take 45.16% of patent filing during this period.
Zhejiang Sheng, China
Patent: 19
Jiangsu Sheng, China
Patent: 5
Beijing Shi, China
Patent: 4
Zhejiang Sheng, China
Patent: 3
Shanxi Sheng, China
Patent: 2
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Patent: 2
Zhejiang Sheng, China
Patent: 2
Zhejiang Sheng, China
Patent: 2
Jiangsu Sheng, China
Patent: 1
Zhejiang Lvjian Environmental Protection Engineering Co., Ltd.
Zhejiang Sheng, China
Patent: 1
With the analysis among related 62 patents in last 5 years, we discover 21 new entrants. Nanjing University, Zhejiang Ocean University, Institute of General Engineering, China Academy of Engineering Physics are the most active new entrants in this area.
Jiangsu Sheng, China
Patent: 5
Zhejiang Sheng, China
Patent: 2
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Patent: 2
Zhejiang Sheng, China
Patent: 2
Zhejiang Lvjian Environmental Protection Engineering Co., Ltd.
Zhejiang Sheng, China
Patent: 1
Anhui Sheng, China
Patent: 1
Beijing Qingda Huayi Technology Co., Ltd.
Beijing Shi, China
Patent: 1
Jiangsu Lvhe Environmental Protection Technology Co., Ltd.
Jiangsu Sheng, China
Patent: 1
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Patent: 1
With the analysis among 157 patents, we discovered top 30 universities and scientific research institutions by total patent application. Beijing University of Chemical Technology, Zhejiang University, North University of China are dominant in this area. They take 45.86% of the total patent filing.
Beijing Shi, China
Patent: 31
Zhejiang Sheng, China
Patent: 25
Shanxi Sheng, China
Patent: 16
Zhejiang Sheng, China
Patent: 11
Jiangsu Sheng, China
Patent: 5
Yunnan Sheng, China
Patent: 4
Beijing Shi, China
Patent: 4
Guangdong Sheng, China
Patent: 3
Beijing Shi, China
Patent: 3
Zhejiang Sheng, China
Patent: 3