With 329 patents published between 2002 and 2022, Pfizer Inc holds the most number of patents in the Oil & Gas sector in Costa Rica.
The second largest number of patents were published by F. Hoffmann-La Roche Ltd with 226 related patents. The third largest number of patents were published by Bayer AG with 203 related patents, of which 29.6% was contributed by its subsidiary Bayer Pharma Aktiengesellschaft. The fourth largest number of patents were published by Sanofi with 119 related patents. The fifth largest number of patents were published by Johnson & Johnson with 110 related patents, of which 75.5% was contributed by its subsidiary Janssen Pharmaceutica NV.
The top five patent holders, i.e., Pfizer Inc, F. Hoffmann-La Roche Ltd, Bayer AG, Sanofi, and Johnson & Johnson, together held 987 patents during the period.
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