With the analysis among 6,345 patents, we discovered top 448 key players by total patent application. Halliburton Energy Services, Inc., China National Petroleum Corp., Schlumberger Technologies, Inc. are dominant in this area. They take 17.42% of the total patent filing.
With the analysis among related 1,900 patents applied in the last 5 years. We discover 161 most active companies in this area. The fast-growing China National Petroleum Corp., PetroChina Co., Ltd., CNPC Chuanqing Drilling Engineering Co. Ltd. take 20.63% of patent filing during this period.
With the analysis among related 1,900 patents in last 5 years, we discover 79 new entrants. Deep Exploration Technologies CRC Ltd., Forum US, Inc., Guangzhou Marine Geological Survey are the most active new entrants in this area.
With the analysis among 533 patents, we discovered top 34 universities and scientific research institutions by total patent application. Southwest Petroleum University, China Petroleum University Beijing, Yangtze University are dominant in this area. They take 43.71% of the total patent filing.