With the analysis among 47 patents, we discovered top 31 key players by total patent application. Schlumberger Holdings Ltd., Techno-Sciences, Inc., Bilco Tools, Inc. are dominant in this area. They take 29.79% of the total patent filing.
British Virgin Islands
Patent: 6
Louisiana, United States
Patent: 4
Sichuan Sheng, China
Patent: 3
Georgia, United States
Patent: 2
Texas, United States
Patent: 2
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With the analysis among related 18 patents applied in the last 5 years. We discover 24 most active companies in this area. The fast-growing Harbin Institute of Technology, MCC Testing and Certification Co., Ltd., Jinan Rail Transit Group Co. Ltd. take 22.22% of patent filing during this period.
Heilongjiang Sheng, China
Patent: 2
Beijing Shi, China
Patent: 1
Shandong Sheng, China
Patent: 1
Hebei Sheng, China
Patent: 1
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Patent: 1
Jiangsu Sheng, China
Patent: 1
Sichuan Sheng, China
Patent: 1
Hubei Sheng, China
Patent: 1
Jiangsu Sheng, China
Patent: 1
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Patent: 1
With the analysis among related 18 patents in last 5 years, we discover 20 new entrants. Harbin Institute of Technology, MCC Testing and Certification Co., Ltd., Jinan Rail Transit Group Co. Ltd. are the most active new entrants in this area.
Heilongjiang Sheng, China
Patent: 2
Beijing Shi, China
Patent: 1
Shandong Sheng, China
Patent: 1
Hebei Sheng, China
Patent: 1
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Patent: 1
Hubei Sheng, China
Patent: 1
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Patent: 1
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Patent: 1
Shandong Sheng, China
Patent: 1
Jilin Sheng, China
Patent: 1
With the analysis among 45 patents, we discovered top 19 universities and scientific research institutions by total patent application. Hohai University, Nanjing University, Wuhan University of Technology are dominant in this area. They take 33.33% of the total patent filing.
Jiangsu Sheng, China
Patent: 5
Jiangsu Sheng, China
Patent: 2
Hubei Sheng, China
Patent: 2
Shandong Sheng, China
Patent: 2
District of Columbia, United States
Patent: 2
Heilongjiang Sheng, China
Patent: 2
Texas, United States
Patent: 1
Hunan Sheng, China
Patent: 1
Guangdong Sheng, China
Patent: 1
Beijing Shi, China
Patent: 1