With the analysis among 137,431 patents, we discovered top 470 key players by total patent application. Halliburton Energy Services, Inc., Smith International, Inc., Hilti AG are dominant in this area. They take 4.21% of the total patent filing.
With the analysis among related 67,691 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Southwest Petroleum University, Halliburton Energy Services, Inc., China National Petroleum Corp. take 1.61% of patent filing during this period.
With the analysis among related 67,691 patents in last 5 years, we discover 67 new entrants. Shenzhen University, Beijing Sany Intelligent Technology Co., Ltd., Dongtai Shenghua Tools Co. Ltd. are the most active new entrants in this area.
With the analysis among 13,643 patents, we discovered top 390 universities and scientific research institutions by total patent application. Southwest Petroleum University, Jilin University, China University of Mining & Technology are dominant in this area. They take 10.74% of the total patent filing.