With the analysis among 184 patents, we discovered top 24 key players by total patent application. Merck & Co., Inc., Farmitalia Carlo Erba SRL, Pharmacia & Upjohn SpA are dominant in this area. They take 60.87% of the total patent filing.
New Jersey, United States
Patent: 84
Illinois, United States
Patent: 8
Missouri, United States
Patent: 7
New Jersey, United States
Patent: 6
Dorset, United Kingdom
Patent: 6
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Patent: 5
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