With the analysis among 79 patents, we discovered top 38 key players by total patent application. DuPont Merck Pharmaceutical Co., Novartis AG, Hoechst AG are dominant in this area. They take 20.25% of the total patent filing.
DuPont Merck Pharmaceutical Co.
Delaware, United States
Patent: 6
Basel-Stadt, Switzerland
Patent: 5
California, United States
Patent: 4
Bristol-Myers Squibb Pharma Co.
New York, United States
Patent: 4
F. Hoffmann-La Roche Ltd.
DuPont Pharmaceuticals Co.
Delaware, United States
Patent: 3
Foseco International Ltd.
Derbyshire, United Kingdom
Patent: 3
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