With the analysis among 31 patents, we discovered top 19 key players by total patent application. BASF AB, Sumitomo Riko Co. Ltd., Parker-Hannifin Corp. are dominant in this area. They take 32.26% of the total patent filing.
Aichi-ken, Japan
Patent: 3
Ohio, United States
Patent: 2
Anhui Sheng, China
Patent: 2
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