With 47 Shale related patents published between 2002 and 2022, Halliburton Co holds the most number of Shale patents in Denmark.
The second largest number of Shale related patents were published by TotalEnergies SE with 28 patents, of which 89.3% was contributed by its subsidiary Maersk Olie og Gas AS. The third largest number of Shale related patents were published by Baker Hughes Co with 11 patents, of which 72.7% was contributed by its subsidiary Baker Hughes Srl. The fourth largest number of Shale related patents were published by Schlumberger Ltd with 8 patents, of which 75.0% was contributed by Schlumberger Technology BV. The fifth largest number of Shale related patents were published by Solvay SA with 6 patents, of which 50.0% was contributed by its subsidiary Rhodia SA.
The top five patent holders, i.e., Halliburton Co, TotalEnergies SE, Baker Hughes Co, Schlumberger Ltd, and Solvay SA, together held 100 Shale patents during the period.
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