With the analysis among 40,256 patents, we discovered top 474 key players by total patent application. Panasonic Holdings Corp., Matsushita Electronics Corp., Toyota Motor Corp. are dominant in this area. They take 3.58% of the total patent filing.
With the analysis among related 11,939 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing Halliburton Energy Services, Inc., China National Offshore Oil Corp., China Petroleum & Chemical Corp. take 1.42% of patent filing during this period.
With the analysis among related 11,939 patents in last 5 years, we discover 184 new entrants. Jiangsu Nuclear Power Corp., Asulab SA, Joh. Friedrich Behrens AG are the most active new entrants in this area.
With the analysis among 3,237 patents, we discovered top 338 universities and scientific research institutions by total patent application. Zhejiang University, Southwest Petroleum University, China University of Petroleum (East China) are dominant in this area. They take 5.81% of the total patent filing.