With 627 patents published between 2002 and 2022, Pfizer Inc holds the most number of patents in the Chemicals sector in Norway, of which 32.9% was contributed by its subsidiary Pfizer Products Inc..
The second largest number of patents were published by AstraZeneca Plc with 543 related patents, of which 91.0% was contributed by its subsidiary AstraZeneca AB. The third largest number of patents were published by Halliburton Co with 513 related patents, of which 97.1% was contributed by its subsidiary Halliburton Energy Services Inc. The fourth largest number of patents were published by Johnson & Johnson with 431 related patents, of which 64.0% was contributed by its subsidiary Janssen Pharmaceutica NV. The fifth largest number of patents were published by Sanofi with 431 related patents.
The top five patent holders, i.e., Pfizer Inc, AstraZeneca Plc, Halliburton Co, Johnson & Johnson, and Sanofi, together held 2,545 patents during the period.
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