With the analysis among 59 patents, we discovered top 27 key players by total patent application. Union Carbide Corp., Teijin Ltd., Janssen Pharmaceutica NV are dominant in this area. They take 28.81% of the total patent filing.
Wisconsin, United States
Patent: 8
Antwerpen, Belgium
Patent: 3
Delaware, United States
Patent: 3
Nordrhein-Westfalen, Germany
Patent: 2
Ohio, United States
Patent: 2
Massachusetts, United States
Patent: 2
Hamburg, Germany
Patent: 2
Chongqing Shi, China
Patent: 2
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