With the analysis among 23,765 patents, we discovered top 461 key players by total patent application. Halliburton Energy Services, Inc., China National Petroleum Corp., M-I LLC are dominant in this area. They take 18.06% of the total patent filing.
With the analysis among related 7,208 patents applied in the last 5 years. We discover 460 most active companies in this area. The fast-growing China National Petroleum Corp., Southwest Petroleum University, Saudi Arabian Oil Co. take 19.88% of patent filing during this period.
With the analysis among related 7,208 patents in last 5 years, we discover 230 new entrants. University of Durham, Eavor Technologies, Inc., Beijing University of Technology are the most active new entrants in this area.
With the analysis among 4,416 patents, we discovered top 176 universities and scientific research institutions by total patent application. Southwest Petroleum University, China University of Petroleum (East China), China Petroleum University Beijing are dominant in this area. They take 37.41% of the total patent filing.