With the analysis among 207,920 patents, we discovered top 467 key players by total patent application. Mitsubishi Kogyo KK, Hitachi Construction Machinery Tierra Co., Ltd., Kubota Corp. are dominant in this area. They take 1.56% of the total patent filing.
With the analysis among related 139,066 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing State Grid Corp. of China, Jilin University, Yanshan University take 0.40% of patent filing during this period.
With the analysis among related 139,066 patents in last 5 years, we discover 64 new entrants. Handan Iron & Steel Group Co. Ltd., Guangdong Power Grid Co. Ltd., Baotou Iron & Steel (Group) Co. Ltd. are the most active new entrants in this area.
With the analysis among 22,851 patents, we discovered top 413 universities and scientific research institutions by total patent application. Zhejiang University, China University of Mining & Technology, Yanshan University are dominant in this area. They take 4.30% of the total patent filing.