Assignee
RHONE POULENC FIBRES
FR·70 granted patents·977 citations·filing 1982–2004
Top patents by PatentIndex Score
70 records- 0196US6559333B1Method for purifying aliphatic aminonitrilesRHONE POULENC FIBRES·Filed 1999·Granted May 6, 2003·85 cites·18 claims
- 0288US5300626AProcess for obtaining modified polyethylene terephthalate pilling-free fibres originating from the polymer thus modifiedRHONE POULENC FIBRES·Filed 1991·Granted Apr 5, 1994·62 cites·6 claims
- 0385US4560385AProcess for the treatment of non-woven sheets and the product obtainedRHONE POULENC FIBRES·Filed 1984·Granted Dec 24, 1985·28 cites·10 claims
- 0483US5478909AProcess for obtaining modified polyethylene terephthalate pilling-free fibres originating from the polymer thus modifiedRHONE POULENC FIBRES·Filed 1994·Granted Dec 26, 1995·37 cites·6 claims
- 0583US5118550ASubstrate based on a nonwoven sheet made of chemical textileRHONE POULENC FIBRES·Filed 1989·Granted Jun 2, 1992·84 cites·16 claims
- 0681US5756635AProcess for spinning from solution of polyamide-imides (PAI) based on tolylene or met-phenylene diisocyanates and fibres thus obtainedRHONE POULENC FIBRES·Filed 1996·Granted May 26, 1998·43 cites·35 claims
- 0781US4710535AMasterbatches for delustring polyamidesRHONE POULENC FIBRES·Filed 1986·Granted Dec 1, 1987·38 cites·9 claims
- 0876US6492525B1Organometallic complexes comprising cationic heterocyclic carbenesRHONE POULENC FIBRES·Filed 1999·Granted Dec 10, 2002·22 cites·22 claims
- 0976US6469194B2Production of nitriles via hydrocyanation of ethylenically unsaturated organic compoundsRHONE POULENC FIBRES·Filed 2001·Granted Oct 22, 2002·18 cites·14 claims
- 1074US6521779B1Hemihydrogenation method for dinitrilesRHONE POULENC FIBRES·Filed 1999·Granted Feb 18, 2003·28 cites·20 claims
- 1174US5442903AThermoset twist composed of synthetic monofilamentsRHONE POULENC FIBRES·Filed 1993·Granted Aug 22, 1995·29 cites·23 claims
- 1272US5908805APreparation of transition metal/phosphine catalysts by hydrogen reductionRHONE POULENC FIBRES·Filed 1996·Granted Jun 1, 1999·34 cites·24 claims
- 1371US6518449B1Method for regenerating a hydrogenation catalyst, method for hydrogenating compounds comprising nitrile functionsRHONE POULENC FIBRES·Filed 1998·Granted Feb 11, 2003·26 cites·14 claims
- 1471US6384283B1Method for preparing aminonitrile and diamineRHONE POULENC FIBRES·Filed 1999·Granted May 7, 2002·11 cites·15 claims
- 1571US6258916B1Process for spinning from solution of polyamide-imides (PAI) based on tolylene or meta-phenylene diisocyanates and fibers thus obtainedRHONE POULENC FIBRES·Filed 1998·Granted Jul 10, 2001·28 cites·22 claims
- 1669US6613939B2Purified sulfonated organophosphorus compounds and catalysis of organic reactions therewithRHONE POULENC FIBRES·Filed 2001·Granted Sep 2, 2003·11 cites·11 claims
- 1768US6005145AMetallic compounds useful as catalystsRHONE POULENC FIBRES·Filed 1996·Granted Dec 21, 1999·10 cites·12 claims
- 1867US6787669B1Method for separating and purifying adipic acidRHONE POULENC FIBRES·Filed 1999·Granted Sep 7, 2004·10 cites·22 claims
- 1967US6100396AMethod for purifying lactamsRHONE POULENC FIBRES·Filed 1997·Granted Aug 8, 2000·11 cites·22 claims
- 2065US5763655APreparation of pentenoic acids via hydroxycarbonylation of butadieneRHONE POULENC FIBRES·Filed 1996·Granted Jun 9, 1998·9 cites·18 claims
- 2164US6147256ACo/Cr catalyzyed oxidation of cyclohexaneRHONE POULENC FIBRES·Filed 1998·Granted Nov 14, 2000·8 cites·18 claims
- 2263US5981790AMethod for partially hydrogenating dinitriles to aminonitrilesRHONE POULENC FIBRES·Filed 1995·Granted Nov 9, 1999·9 cites·25 claims
- 2360US6559339B1Method for crystallizing carboxylic acidRHONE POULENC FIBRES·Filed 1999·Granted May 6, 2003·7 cites·20 claims
- 2460US4628682ASpun fibre yarn and method for its manufactureRHONE POULENC FIBRES·Filed 1984·Granted Dec 16, 1986·13 cites·9 claims
- 2559US6069246AMethod for treating lactamsRHONE POULENC FIBRES·Filed 1997·Granted May 30, 2000·8 cites·12 claims
- 2659US5900506AMethod of processing reaction mixtures obtained from the oxidation of cyclohexaneRHONE POULENC FIBRES·Filed 1997·Granted May 4, 1999·7 cites·18 claims
- 2759US4950700APolyamide-imide solutions and a process for obtaining themRHONE POULENC FIBRES·Filed 1989·Granted Aug 21, 1990·16 cites·20 claims
- 2856US6635151B1Lactam dehydration methodRHONE POULENC FIBRES·Filed 1999·Granted Oct 21, 2003·10 cites·10 claims
- 2956US5207959AProcess for obtaining pet yarns with an improved production efficiencyRHONE POULENC FIBRES·Filed 1990·Granted May 4, 1993·12 cites·6 claims
- 3056US4518658AWaterproof membrane with fuse bonded non-woven reinforcementRHONE POULENC FIBRES·Filed 1984·Granted May 21, 1985·8 cites·8 claims
- 3154US6822117B1Method for making adipic acidRHONE POULENC FIBRES·Filed 2000·Granted Nov 23, 2004·3 cites·7 claims
- 3254US6232488B1Method for hydrogenating dinitrilesRHONE POULENC FIBRES·Filed 1998·Granted May 15, 2001·12 cites·20 claims
- 3354US5431782ASynthetic papers based on thermally stable fibres, pulp and binder and process for obtaining themRHONE POULENC FIBRES·Filed 1993·Granted Jul 11, 1995·16 cites·23 claims
- 3453US5336709AUndrawn pre-oriented pet yarns with improved production efficiencyRHONE POULENC FIBRES·Filed 1992·Granted Aug 9, 1994·10 cites·4 claims
- 3553US5095070APolyamide-imide solutions and the process for obtaining themRHONE POULENC FIBRES·Filed 1991·Granted Mar 10, 1992·10 cites·21 claims
- 3651US6214190B1Method for separating a catalyst by membrane electrodialysisRHONE POULENC FIBRES·Filed 1997·Granted Apr 10, 2001·4 cites·14 claims
- 3751US5341632AYarn with the appearance of a spun yarn, made from polyamide-based fibresRHONE POULENC FIBRES·Filed 1993·Granted Aug 30, 1994·14 cites·9 claims
- 3850US6479658B1Method for cyclizing hydrolysis of an aminonitrile compound into lactamRHONE POULENC FIBRES·Filed 1999·Granted Nov 12, 2002·5 cites·13 claims
- 3949US5723603AProcess for the preparation of lactamsRHONE POULENC FIBRES·Filed 1996·Granted Mar 3, 1998·9 cites·31 claims
- 4049US5684119ASolutions of polyamideimides in γ-butyrolactone, process for obtaining them and the yarns thus obtainedRHONE POULENC FIBRES·Filed 1992·Granted Nov 4, 1997·13 cites·17 claims
- 4147US6015924AProcess for the preparation of diacids from the washing waters of cyclohexane oxidation productsRHONE POULENC FIBRES·Filed 1997·Granted Jan 18, 2000·4 cites·21 claims
- 4247US5663392APreparation of VSba aTib Ox ammoxidation catalystsRHONE POULENC FIBRES·Filed 1996·Granted Sep 2, 1997·10 cites·14 claims
- 4347US4834577AProcess and means for the protection of roadway dressings against crack initiationRHONE POULENC FIBRES·Filed 1986·Granted May 30, 1989·19 cites·10 claims
- 4446US6538156B1Method for purifying adipic acid by crystallizationRHONE POULENC FIBRES·Filed 1997·Granted Mar 25, 2003·3 cites·12 claims
- 4545US6563001B1Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbonRHONE POULENC FIBRES·Filed 1999·Granted May 13, 2003·3 cites·11 claims
- 4645US6372942B1Pentenoic acid hydroxycarbonylation methodRHONE POULENC FIBRES·Filed 1997·Granted Apr 16, 2002·4 cites·16 claims
- 4744US6312578B1Method for extracting amine compounds from a liquid mediumRHONE POULENC FIBRES·Filed 1997·Granted Nov 6, 2001·12 cites·15 claims
- 4842US5118778AProcess for the preparation of semiordered polyamides-imidesRHONE POULENC FIBRES·Filed 1991·Granted Jun 2, 1992·5 cites·6 claims
- 4941US6083869AMethod for preparing ammoxidation catalystsRHONE POULENC FIBRES·Filed 1996·Granted Jul 4, 2000·10 cites·27 claims
- 5039US7045656B2Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groupsRHONE POULENC FIBRES·Filed 2004·Granted May 16, 2006·0 cites·6 claims
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