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FR28 patents
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US11629211B2Apr 18, 2023
Additive based on water-soluble polymers and uses thereof
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US12269789B2Apr 8, 2025
Method for obtaining bio-sourced N-vinylformamide
SNF GROUP0 citations62
US12209219B2Jan 28, 2025
Composition for oil and gas recovery
SNF GROUP0 citations62
US12030832B2Jul 9, 2024
Dialkyl tin oxide composition and process for producing 2-dimethylaminoethyl (meth)acrylate
SNF GROUP0 citations60
US11773199B2Oct 3, 2023
Auto-invertible inverse polymer emulsion
SNF GROUP0 citations60
US11987744B2May 21, 2024
Method for modifying the water permeability of a subterranean formation
SNF GROUP0 citations59
US11767460B2Sep 26, 2023
Method for modifying the water permeability of a subterranean formation
SNF GROUP0 citations59
US11767381B2Sep 26, 2023
2-dimethylaminoethyl acrylate polymers and their preparation method
SNF GROUP0 citations58
US11802109B2Oct 31, 2023
Method for the purification of acrylamido-2-methyl-2-propanesulphonic acid
SNF GROUP1 citations56
US12091480B2Sep 17, 2024
Method for producing 2-dimethylaminoethyl (meth)acrylate
SNF GROUP0 citations51
US11634664B2Apr 25, 2023
Method for preparing an inverse emulsion comprising two cationic polymers
SNF GROUP1 citations51
US12459889B2Nov 4, 2025
Sulfobetaine monomers, process for preparing same, and uses thereof
SNF GROUP0 citations49
US12421330B2Sep 23, 2025
Polymer and its preparation method
SNF GROUP0 citations48
US12365754B2Jul 22, 2025
Polymer and method for the preparation thereof
SNF GROUP0 citations48
US12234609B2Feb 25, 2025
Method for manufacturing paper and cardboard
SNF GROUP0 citations48
US12098325B2Sep 24, 2024
Method for modifying the water permeability of a subterranean formation
SNF GROUP0 citations48
US12516235B2Jan 6, 2026
Cementitious composition comprising a polymeric micro-gel as an anti-gas migration agent
SNF GROUP0 citations47
US12134860B2Nov 5, 2024
Method for manufacturing paper and cardboard
SNF GROUP0 citations47
US11718783B2Aug 8, 2023
Method for preparing a composition comprising a hydrosoluble (co)polymer encapsulated in a shell and use of this composition in assisted oil and gas recovery
SNF GROUP0 citations47
US12331147B2Jun 17, 2025
Polymer and its preparation method
SNF GROUP0 citations44
US12195920B2Jan 14, 2025
Process for manufacturing paper or cardboard
SNF GROUP0 citations44
US11787889B2Oct 17, 2023
Process for the preparation of polyacrylamides using an eco-friendly lubricant composition
SNF GROUP0 citations44
US12378331B2Aug 5, 2025
Method for synthesising polymers by controlled-radical inverse emulsion polymerisation
SNF GROUP0 citations42
US12553186B2Feb 17, 2026
Process for manufacturing paper or cardboard
SNF GROUP0 citations41
US12534614B2Jan 27, 2026
Binder composition for iron ore agglomeration
SNF GROUP0 citations41
US12453944B2Oct 28, 2025
Device for dispersing water-soluble polymers
SNF GROUP0 citations41
US12404446B2Sep 2, 2025
Dispersion of water-soluble polymer for hydraulic fracturing
SNF GROUP0 citations40
US11933151B2Mar 19, 2024
Installation for the storage and use of water-soluble polymers
SNF GROUP0 citations38