Inventor · disambiguated record
Norbert Herfert
Also filed as: HERFERT NORBERT
46 granted patents·31 pending applications·1,267 citations·filing 1995–2019
98Inventor score
Top patents by PatentIndex Score
77 records- 0198US6414214B1Mechanically stable hydrogel-forming polymersBASF AG·Filed 1999·Granted Jul 2, 2002·248 cites·29 claims
- 0296US5731365AHydrophilic, highly swellable hydrogelsHOECHST AG·Filed 1995·Granted Mar 24, 1998·153 cites·10 claims
- 0395US6849665B2Absorbent compositionsBASF AG·Filed 2001·Granted Feb 1, 2005·99 cites·15 claims
- 0493US6641064B1Complete drying method for hydrogelsBASF AG·Filed 1999·Granted Nov 4, 2003·77 cites·7 claims
- 0593US5973014AProcess for the preparation of porous, hydrophilic, highly swellable hydrogelsFiled 1997·Granted Oct 26, 1999·88 cites·15 claims
- 0692US9073040B2Water-absorbent polymer particlesBASF SE·Filed 2013·Granted Jul 7, 2015·9 cites·9 claims
- 0792US6297335B1Crosslinked, hydrophilic, highly swellable hydrogels, production thereof and use thereofBASF AG·Filed 1999·Granted Oct 2, 2001·88 cites·14 claims
- 0892US5840321AHydrophilic, highly swellable hydrogelsCLARIANT GMBH·Filed 1996·Granted Nov 24, 1998·73 cites·16 claims
- 0989US7396584B2Crosslinked polyamine coating on superabsorbent hydrogelsBASF AG·Filed 2002·Granted Jul 8, 2008·35 cites·43 claims
- 1088US8865828B2Method for producing permeable water-absorbing polymer particles through polymerization of drops of a monomer solutionDANIEL THOMAS·Filed 2009·Granted Oct 21, 2014·9 cites·22 claims
- 1185US7915363B2Acidic superabsorbent hydrogelsBASF AG·Filed 2007·Granted Mar 29, 2011·5 cites·19 claims
- 1285US6565768B1Method for producing water-swellable hydorphilic polymers, said polymers and use thereofBASF AG·Filed 1999·Granted May 20, 2003·92 cites·26 claims
- 1383US7790823B2Acidic superabsorbent hydrogelsBASF AG·Filed 2007·Granted Sep 7, 2010·4 cites·17 claims
- 1481US8481159B2Water-absorbent porous polymer particles having specific sphericity and high bulk densityDOBRAWA RAINER·Filed 2010·Granted Jul 9, 2013·5 cites·9 claims
- 1580US8017549B2Superabsorbents having superior permeability and conveying propertiesBASF SE·Filed 2007·Granted Sep 13, 2011·12 cites·9 claims
- 1679US6800666B2Hydrophilic, open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene productsBASF AG·Filed 2001·Granted Oct 5, 2004·30 cites·14 claims
- 1778US7144957B2Polymer mixture of hydrogels with different pH valueBASF AG·Filed 2002·Granted Dec 5, 2006·27 cites·11 claims
- 1877US9422221B2Method for the restabilization of (meth)acrylic monomersHERFERT NORBERT·Filed 2010·Granted Aug 23, 2016·2 cites·18 claims
- 1977US6828354B2Hydrophilic open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene productsBASF AG·Filed 2001·Granted Dec 7, 2004·13 cites·18 claims
- 2077US6602950B1Hydrophilic hydrogels with a high swelling capacity and method for producing and using themBASF AG·Filed 1999·Granted Aug 5, 2003·58 cites·23 claims
- 2176US10208170B2Process for producing surface-postcrosslinked water-absorbent polymer particlesBASF SE·Filed 2013·Granted Feb 19, 2019·2 cites·17 claims
- 2275US11142614B2Process for producing surface-postcrosslinked water-absorbent polymer particlesBASF SE·Filed 2018·Granted Oct 12, 2021·0 cites·12 claims
- 2375US6107432AWater-swellable, hydrophilic polymer compositionsBASF AG·Filed 1998·Granted Aug 22, 2000·28 cites·9 claims
- 2474US7662460B2Plasticized superabsorbent polymer sheets and use thereof in hygienic articlesBASF AG·Filed 2003·Granted Feb 16, 2010·16 cites·24 claims
- 2574US7504551B2Color-stable superabsorbent polymer compositionBASF AG·Filed 2004·Granted Mar 17, 2009·21 cites·31 claims
- 2673US8703876B2Process for producing water absorbing polymer particles with improved color stabilityHERFERT NORBERT·Filed 2011·Granted Apr 22, 2014·2 cites·12 claims
- 2773US8497337B2Process for producing water-absorbing polymer particles with improved color stabilityHERFERT NORBERT·Filed 2010·Granted Jul 30, 2013·1 cites·14 claims
- 2873US5945495AUse of surfactants in the drying of hydrophilic highly swellable hydrogelsBASF CORP·Filed 1997·Granted Aug 31, 1999·29 cites·13 claims
- 2971US10806640B2Ultrathin fluid-absorbent articleBASF SE·Filed 2017·Granted Oct 20, 2020·1 cites·11 claims
- 3070US9914112B2Process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solutionBASF SE·Filed 2015·Granted Mar 13, 2018·1 cites·16 claims
- 3170US8815770B2Color-stable superabsorberELLIOTT MARK·Filed 2010·Granted Aug 26, 2014·2 cites·19 claims
- 3270US7528291B2Color-stable superabsorbent polymer compositionBASF AG·Filed 2004·Granted May 5, 2009·14 cites·27 claims
- 3365US8618206B2Process for producing water-absorbing polymer particles with low caking tendency and high absorption under pressureBASF SE·Filed 2013·Granted Dec 31, 2013·0 cites·8 claims
- 3465US8450428B2Process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solutionDANIEL THOMAS·Filed 2011·Granted May 28, 2013·1 cites·10 claims
- 3564US9944739B2Process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solutionBASF SE·Filed 2017·Granted Apr 17, 2018·0 cites·21 claims
- 3660US7329701B2Superabsorbent polymers and method of manufacturing the sameBASF AG·Filed 2003·Granted Feb 12, 2008·18 cites·29 claims
- 3758US9790304B2Process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solutionBASF SE·Filed 2013·Granted Oct 17, 2017·0 cites·14 claims
- 3858US8410221B2Process for producing water-absorbing polymer particles with low caking tendency and high absorption under pressureDANIEL THOMAS·Filed 2010·Granted Apr 2, 2013·0 cites·6 claims
- 3958US2011118114A1Color stable superabsorbentBASF SE·Filed 2009·Application pending·0 cites
- 4056US12083496B2Process for producing superabsorbentsBASF SE·Filed 2019·Granted Sep 10, 2024·0 cites·5 claims
- 4155US2010261604A1Process for Producing Surface Crosslinked SuperabsorbentsHERFERT NORBERT·Filed 2008·Application pending·0 cites
- 4254US2005234413A1Acidic superabsorbent hydrogelsBASF AG·Filed 2005·Application pending·0 cites
- 4354US2010063469A1Polyamine-Coated Superabsorbent PolymersBASF SE·Filed 2007·Application pending·0 cites
- 4453US12336895B2Thin fluid absorbent core-absorbent paperBASF SE·Filed 2019·Granted Jun 24, 2025·0 cites·15 claims
- 4553US2009204087A1Superabsorbent Polymers Having Superior Gel Integrity, Absorption Capacity, and PermeabilityBASF SE·Filed 2007·Application pending·0 cites
- 4651US11813589B2Superabsorbent complexed with aluminum ionsBASF SE·Filed 2018·Granted Nov 14, 2023·0 cites·15 claims
- 4751US2010323885A1Process for Producing Re-Moisturised Surface-Crosslinked SuperabsorbentsBASF SE A GERMAN CORP·Filed 2008·Application pending·0 cites
- 4851US2008045916A1Superabsorbent Polymer Particles Having a Reduced Amount of Fine-Sized Particles, and Methods of Manufacturing the SameBASF AG A GERMAN CORP·Filed 2004·Application pending·0 cites
- 4950US8852742B2Water absorbent polymer particles formed by polymerizing droplets of a monomer solution and coated with sulfinic acid, sulfonic acid, and/or salts thereofHERFERT NORBERT·Filed 2011·Granted Oct 7, 2014·0 cites·10 claims
- 5050US2021354108A1Process for producing long-term color stable superabsorbent polymer particlesBASF SE·Filed 2019·Application pending·0 cites
Showing the top 50 of 77 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →