With the analysis among 106 patents, we discovered top 75 key players by total patent application. IHI Corp., C. van der Lely NV, Saudi Arabian Oil Co. are dominant in this area. They take 10.38% of the total patent filing.
Zuid-Holland, Netherlands
Patent: 4
Halliburton Energy Services, Inc.
Texas, United States
Patent: 3
Sumitomo Mitsui Construction Co., Ltd.
Jiangsu Sheng, China
Patent: 2
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 2
Shandong Keling Energy Saving Equipment Co Ltd.
Shandong Sheng, China
Patent: 2
Schwyz, Switzerland
Patent: 2
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With the analysis among related 49 patents applied in the last 5 years. We discover 31 most active companies in this area. The fast-growing Saudi Arabian Oil Co., Schlumberger Technologies, Inc., China Railway Tunnel Bureau Group Co., Ltd. take 14.29% of patent filing during this period.
Schlumberger Technologies, Inc.
New Jersey, United States
Patent: 2
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 2
State Key Laboratory of Shield Tunneling and Tunneling Technology
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Patent: 2
Shandong Keling Energy Saving Equipment Co Ltd.
Shandong Sheng, China
Patent: 2
Xinwen Mining Group Geological Exploration Co., Ltd.
Shandong Sheng, China
Patent: 1
Urban Construction Technology Group (Zhejiang) Co., Ltd.
Zhejiang Sheng, China
Patent: 1
China Railway 24th Bureau Group Shanghai Railway Construction Engineering Co., Ltd.
Shanghai Shi, China
Patent: 1
Texas, United States
Patent: 1
China Railway 12th Bureau Group 2nd Engineering Co., Ltd.
Shanxi Sheng, China
Patent: 1
With the analysis among related 49 patents in last 5 years, we discover 30 new entrants. Saudi Arabian Oil Co., Schlumberger Technologies, Inc., China Railway Tunnel Bureau Group Co., Ltd. are the most active new entrants in this area.
Schlumberger Technologies, Inc.
New Jersey, United States
Patent: 2
China Railway Tunnel Bureau Group Co., Ltd.
Guangdong Sheng, China
Patent: 2
State Key Laboratory of Shield Tunneling and Tunneling Technology
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Patent: 2
Shandong Keling Energy Saving Equipment Co Ltd.
Shandong Sheng, China
Patent: 2
Xinwen Mining Group Geological Exploration Co., Ltd.
Shandong Sheng, China
Patent: 1
Urban Construction Technology Group (Zhejiang) Co., Ltd.
Zhejiang Sheng, China
Patent: 1
China Railway 24th Bureau Group Shanghai Railway Construction Engineering Co., Ltd.
Shanghai Shi, China
Patent: 1
Texas, United States
Patent: 1
Hengyang Highway Bridge Construction Co.,Ltd.
Hunan Sheng, China
Patent: 1
With the analysis among 14 patents, we discovered top 5 universities and scientific research institutions by total patent application. Tongji University, Southwest Petroleum University, Wenzhou University are dominant in this area. They take 50.00% of the total patent filing.
Shanghai Shi, China
Patent: 1
Southwest Petroleum University
Sichuan Sheng, China
Patent: 1
Zhejiang Sheng, China
Patent: 1
Shandong University of Science & Technology
Shandong Sheng, China
Patent: 1
Jiangsu Sheng, China
Patent: 1