With the analysis among 46 patents, we discovered top 16 key players by total patent application. Hoechst AG, Toray Fine Chemicals Co., Ltd., Toray Industries, Inc. are dominant in this area. They take 43.48% of the total patent filing.
Hessen, Germany
Patent: 11
Andhra Pradesh, India
Patent: 2
Chiba-ken, Japan
Patent: 2
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