With 244 patents published between 2002 and 2022, Pfizer Inc holds the most number of patents in the Oil & Gas sector in Czech Republic, of which 34.8% was contributed by its subsidiary Pfizer Products Inc..
The second largest number of patents were published by BASF SE with 160 related patents. The third largest number of patents were published by Bayer AG with 148 related patents. The fourth largest number of patents were published by Sanofi with 135 related patents, of which 35.6% was contributed by its subsidiary Aventis Pharma SA. The fifth largest number of patents were published by Zentiva Group AS with 97 related patents.
The top five patent holders, i.e., Pfizer Inc, BASF SE, Bayer AG, Sanofi, and Zentiva Group AS, together held 784 patents during the period.
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