With the analysis among 33,688 patents, we discovered top 470 key players by total patent application. Halliburton Energy Services, Inc., China National Petroleum Corp., China Petroleum & Chemical Corp. are dominant in this area. They take 12.00% of the total patent filing.
With the analysis among related 10,386 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing China National Petroleum Corp., Southwest Petroleum University, Sinopec Oilfield Service Corp. take 13.42% of patent filing during this period.
With the analysis among related 10,386 patents in last 5 years, we discover 190 new entrants. Guangzhou Marine Geological Survey, Eavor Technologies, Inc., Seismos, Inc. are the most active new entrants in this area.
With the analysis among 6,419 patents, we discovered top 239 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 29.40% of the total patent filing.