With the analysis among 667 patents, we discovered top 65 key players by total patent application. Ciba Ltd., Bayer AG, Ciba-Geigy AG are dominant in this area. They take 34.63% of the total patent filing.
Nordrhein-Westfalen, Germany
Patent: 65
Imperial Chemical Industries Ltd.
Delaware, United States
Patent: 27
North Carolina, United States
Patent: 10
Texas, United States
Patent: 9
New Jersey, United States
Patent: 7
Massachusetts, United States
Patent: 7
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