With 5,841 patents published between 2002 and 2022, Halliburton Co holds the most number of patents in the Oil & Gas sector in Canada, of which 81.8% was contributed by its subsidiary Halliburton Energy Services Inc.
The second largest number of patents were published by BASF SE with 3,028 related patents. The third largest number of patents were published by Schlumberger Ltd with 2,636 related patents, of which 89.5% was contributed by its subsidiary Schlumberger Canada Ltd. The fourth largest number of patents were published by Dow Inc with 2,399 related patents, of which 60.5% was contributed by its subsidiary Dow Global Technologies, LLC. The fifth largest number of patents were published by Baker Hughes Co with 2,176 related patents, of which 77.0% was contributed by its subsidiary Baker Hughes Srl.
The top five patent holders, i.e., Halliburton Co, BASF SE, Schlumberger Ltd, Dow Inc, and Baker Hughes Co, together held 16,080 patents during the period.
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