With 201 patents held between 2002 and 2022, Halliburton Co holds the most number of Enhanced Oil Recovery (EOR) patents in the Chemicals sector in the Europe region, of which 98.0% was contributed by Halliburton Energy Services Inc.
The second largest number of patents were held by Schlumberger Ltd with 95 Enhanced Oil Recovery (EOR) patents, of which 54.7% was contributed by Schlumberger Technology BV. The third largest number of patents were held by Solvay SA with 57 Enhanced Oil Recovery (EOR) patents, of which 78.9% was contributed by Rhodia Operations SASU. The fourth largest number of patents were held by BASF SE with 57 Enhanced Oil Recovery (EOR) patents. The fifth largest number of patents were held by Baker Hughes Co with 55 Enhanced Oil Recovery (EOR) patents.
The top five patents holders, i.e., Halliburton Co, Schlumberger Ltd, Solvay SA, BASF SE, and Baker Hughes Co, together held 465 Enhanced Oil Recovery (EOR) patents during the period.
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