With the analysis among 6,945 patents, we discovered top 465 key players by total patent application. Heishin Ltd., PetroChina Co., Ltd., NETZSCH Pumpen & Systeme GmbH are dominant in this area. They take 8.35% of the total patent filing.
With the analysis among related 2,673 patents applied in the last 5 years. We discover 312 most active companies in this area. The fast-growing PetroChina Co., Ltd., Southwest Petroleum University, Seepex GmbH take 4.60% of patent filing during this period.
With the analysis among related 2,673 patents in last 5 years, we discover 207 new entrants. Vogelsang GmbH & Co. KG, Nidec GPM GmbH, Shaanxi University of Technology are the most active new entrants in this area.
With the analysis among 689 patents, we discovered top 125 universities and scientific research institutions by total patent application. Southwest Petroleum University, China University of Petroleum (East China), Northeast Petroleum University are dominant in this area. They take 16.11% of the total patent filing.