Assignee
SPCM SA
FR·86 granted patents·21 pending applications·231 citations·filing 2006–2022
Top patents by PatentIndex Score
107 records- 0198US11535588B2Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acidSPCM SA·Filed 2022·Granted Dec 27, 2022·4 cites·15 claims
- 0298US10759746B2Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acidSPCM SA·Filed 2018·Granted Sep 1, 2020·34 cites·6 claims
- 0397US8383560B2Method of continuous dissolution of polyacrylamide emulsions for enhanced oil recovery (EOR)SPCM SA·Filed 2010·Granted Feb 26, 2013·98 cites·9 claims
- 0495US10647908B2Composition for oil and gas recoverySPCM SA·Filed 2019·Granted May 12, 2020·9 cites·30 claims
- 0589US11155749B1Composition for oil and gas recoverySPCM SA·Filed 2020·Granted Oct 26, 2021·7 cites·22 claims
- 0689US9963532B2Low-concentration, inverse emulsion obtained by polymerization of weakly neutralized polymersSPCM SA·Filed 2016·Granted May 8, 2018·4 cites·23 claims
- 0789US9546246B2Complexes of water-soluble polymers, and uses thereofSPCM SA·Filed 2014·Granted Jan 17, 2017·10 cites·18 claims
- 0884US10975290B2Method of treating a portion of a subterranean formation with improved water in oil emulsionSPCM SA·Filed 2019·Granted Apr 13, 2021·2 cites·20 claims
- 0984US7972478B2Method of producing high dry strength paper and cardboard and paper and cardboard thus obtainedSPCM SA·Filed 2006·Granted Jul 5, 2011·9 cites·16 claims
- 1083US10836871B2Method of preparation of cationic polymers with reduced halides contentSPCM SA·Filed 2017·Granted Nov 17, 2020·2 cites·16 claims
- 1183US9663704B2Process for the enhanced recovery of oil by injection of a polymer solutionSPCM SA·Filed 2013·Granted May 30, 2017·4 cites·20 claims
- 1283US9290588B2Process for low-concentration, inverse emulsion polymerization of weakly neutralized polymersSPCM SA·Filed 2014·Granted Mar 22, 2016·4 cites·35 claims
- 1382US11535587B2Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acidSPCM SA·Filed 2022·Granted Dec 27, 2022·0 cites·15 claims
- 1482US7883603B2Method for making paper and cardboard with high dry strength and resulting papers and cardboardsSPCM SA·Filed 2006·Granted Feb 8, 2011·7 cites·25 claims
- 1581US9499648B2Comb polymers which can be used in cosmetics and detergentsSPCM SA·Filed 2014·Granted Nov 22, 2016·2 cites·19 claims
- 1680US11118101B2Multiphase polymer suspension and use thereofSPCM SA·Filed 2018·Granted Sep 14, 2021·1 cites·18 claims
- 1780US10669231B2Method for producing 2-acrylamido-2-methylpropane sulphonic acidSPCM SA·Filed 2018·Granted Jun 2, 2020·1 cites·20 claims
- 1879US10858566B2Drilling fluid with improved fluid loss and viscosifying propertiesSPCM SA·Filed 2020·Granted Dec 8, 2020·2 cites·15 claims
- 1979US10662149B2Method for producing the 2-acrylamido-2-methylpropane sulfonic acid monomer and polymer comprising said monomerSPCM SA·Filed 2016·Granted May 26, 2020·1 cites·17 claims
- 2078US10161081B2Sizing composition and process for textile materialsSPCM SA·Filed 2013·Granted Dec 25, 2018·1 cites·12 claims
- 2177US10689809B2Process for manufacturing paper and boardSPCM SA·Filed 2017·Granted Jun 23, 2020·3 cites·20 claims
- 2277US9150675B2Comb polymers which can be used in cosmetics and detergentsSPCM SA·Filed 2013·Granted Oct 6, 2015·2 cites·20 claims
- 2376US11365173B2Hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acidSPCM SA·Filed 2020·Granted Jun 21, 2022·0 cites·13 claims
- 2475US11280735B2Method for determining the anionic charge density of a polymerSPCM SA·Filed 2017·Granted Mar 22, 2022·1 cites·20 claims
- 2575US10968171B2Fracturing fluid comprising a (co)polymer of a hydrated crystalline form of 2-acrylamido-2-methylpropane sulphonic acid and hydraulic fracturing methodSPCM SA·Filed 2018·Granted Apr 6, 2021·0 cites·20 claims
- 2674US11287378B2Method for assaying cationic polymers by time-resolved photoluminescenceSPCM SA·Filed 2018·Granted Mar 29, 2022·1 cites·9 claims
- 2773US9506200B2Process for manufacturing paper using a base copolymer that has reacted with an aldehyde as a dry strength, retention, drainage and runnability aidSPCM SA·Filed 2013·Granted Nov 29, 2016·3 cites·20 claims
- 2872US11370749B2Method for treating a suspension of solid particles in water using a (co)polymer of a hydrated crystalline form of 2-acrylamido-2-methylpropanesulfonic acidSPCM SA·Filed 2018·Granted Jun 28, 2022·0 cites·20 claims
- 2972US11180446B2Enhanced oil recovery method using a (co)polymer of a hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acidSPCM SA·Filed 2018·Granted Nov 23, 2021·0 cites·20 claims
- 3072US10561597B2Use in cosmetics of polymers obtained by low-concentration, inverse emulsion polymerisation with a low level of neutralised monomersSPCM SA·Filed 2014·Granted Feb 18, 2020·2 cites·30 claims
- 3170US10422731B2Device for in-line monitoring of the quality of a water-soluble polymer solution manufactured from invert emulsion or powder of said polymerSPCM SA·Filed 2016·Granted Sep 24, 2019·2 cites·13 claims
- 3269US8343311B2Method for producing paper and cardboardSPCM SA·Filed 2009·Granted Jan 1, 2013·1 cites·19 claims
- 3368US11584819B2Auto-invertible inverse polymer emulsionSPCM SA·Filed 2019·Granted Feb 21, 2023·0 cites·8 claims
- 3468US9656888B2Functionalized cationic polyamines and their use to reduce the NDMA formation during the treatment of aqueous systems, and applications in the water treatment industry, including wastewater and drinking water treatment processesSPCM SA·Filed 2014·Granted May 23, 2017·1 cites·9 claims
- 3566US9303359B2Method for manufacturing paper using a cationic polymer obtained by hofmann degradationSPCM SA·Filed 2013·Granted Apr 5, 2016·2 cites·20 claims
- 3664US10000597B2Water-soluble hydroxyalkyl polymer obtained by a method of inverse suspension or inverse emulsion polymerisationSPCM SA·Filed 2015·Granted Jun 19, 2018·2 cites·20 claims
- 3763US9469813B2Method for recovering bitumen from tar sandsSPCM SA·Filed 2014·Granted Oct 18, 2016·1 cites·14 claims
- 3862US11939522B2Method for enhancing oil recovery in a subterranean carbonate formation using an injected amphoteric water-soluble polymerSPCM SA·Filed 2021·Granted Mar 26, 2024·0 cites·14 claims
- 3962US11608597B2Complex of polymers, preparation and useSPCM SA·Filed 2019·Granted Mar 21, 2023·0 cites·19 claims
- 4061US10160908B2Method of soil conditioning by application of water-soluble or water-swelling polymerSPCM SA·Filed 2014·Granted Dec 25, 2018·1 cites·14 claims
- 4161US2024263201A1Biological method for obtaining monomers comprising an ethylenic unsaturation by bioconversion of a bio-sourced compound comprising at least one nitrile functionSPCM SA·Filed 2022·Application pending·0 cites
- 4260US11560510B2Aqueous fracturing fluid composition and fracturing process using the compositionSPCM SA·Filed 2021·Granted Jan 24, 2023·0 cites·20 claims
- 4360US9885161B2Method for limiting freshet levels and controlling floodsSPCM SA·Filed 2014·Granted Feb 6, 2018·0 cites·9 claims
- 4460US2023242779A1Crosslinked copolymer, preparation method and printing paste comprising said copolymerSPCM SA·Filed 2021·Application pending·0 cites
- 4559US10132039B2Process for manufacturing paper using a base copolymer that has reacted with an aldehyde as a dry strength, retention, drainage and runnability aidSPCM SA·Filed 2016·Granted Nov 20, 2018·0 cites·16 claims
- 4659US7814977B2Installation for enhanced oil recovery using water-soluble polymers and method of implementingSPCM SA·Filed 2008·Granted Oct 19, 2010·6 cites·14 claims
- 4757US11781271B2Increasing paper strength by surface treatmentSPCM SA·Filed 2020·Granted Oct 10, 2023·0 cites·14 claims
- 4857US9914828B2Method of inerting pipelines, buried tanks or wellbores using an SAPSPCM SA·Filed 2012·Granted Mar 13, 2018·1 cites·14 claims
- 4956US11746027B2Method for treating aqueous effluentSPCM SA·Filed 2021·Granted Sep 5, 2023·0 cites·12 claims
- 5056US11505634B2Method for producing anionic water-soluble polymer on the basis of bioacrylamide and acrylic acidSPCM SA·Filed 2017·Granted Nov 22, 2022·0 cites·19 claims
Showing the top 50 of 107 patent records by PatentIndex Score.
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