With 81,089 patents published between 2002 and 2022, BASF SE holds the most number of patents in the global Oil & Gas sector.
The second largest number of patents were published by Dow Inc with 56,812 related patents, of which 58.4% was contributed by its subsidiary Dow Global Technologies, LLC. The third largest number of patents were published by Halliburton Co with 53,299 related patents, of which 80.6% was contributed by its subsidiary Halliburton Energy Services Inc. The fourth largest number of patents were published by LG Corp with 49,605 related patents, of which 54.6% was contributed by its subsidiary LG Life Science LTD. The fifth largest number of patents were published by China Petrochemical Corp with 43,869 related patents, of which 76.0% was contributed by its subsidiary China Petroleum & Chemical Corp.
The top five patent holders, i.e., BASF SE, Dow Inc, Halliburton Co, LG Corp, and China Petrochemical Corp, together held 284,674 patents during the period.
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