Inventor
RIEGEL ULRICH
DE65 patents
⚠️ This page may combine multiple inventors who share the name “RIEGEL ULRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
22 patentsUS6657015B1Dec 2, 2003
Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines
BASF AG205 citations99
US6559239B1May 6, 2003
Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones
BASF AG223 citations99
US6503979B1Jan 7, 2003
Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones
BASF AG173 citations99
US6472478B1Oct 29, 2002
Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones
BASF AG230 citations99
US6414214B1Jul 2, 2002
Mechanically stable hydrogel-forming polymers
BASF AG248 citations99
US7772420B2Aug 10, 2010
(Meth)acrylic esters of monoalkoxylated polyols, and production thereof
BASF AG112 citations98
US7687596B2Mar 30, 2010
(Meth)acrylic acid esters of alkyoxylated unsaturated polyol ethers, and production thereof
BASF AG110 citations98
US7652111B2Jan 26, 2010
(Meth)acrylic acid esters of unsaturated aminoalcohols and preparation thereof
BASF AG106 citations98
US7199211B2Apr 3, 2007
(Meth)acrylic esters of polyalkoxylated trimethylolpropane
BASF AG140 citations98
US7183360B2Feb 27, 2007
Method for crosslinking hydrogels with morpholine-2,3-diones
BASF AG188 citations98
US7754822B2Jul 13, 2010
Method for the secondary crosslinking of hydrogels with bicyclic amide acetals
BASF AG98 citations96
US6849665B2Feb 1, 2005
Absorbent compositions
BASF AG99 citations96
US7553903B2Jun 30, 2009
Swellable hydrogel-forming polymers having a low fraction of fines
BASF AG43 citations93
US7420013B2Sep 2, 2008
Mixtures of compounds comprising at least two double bonds and use thereof
BASF AG33 citations93
US6831122B2Dec 14, 2004
Water-absorbing agent, method for the production and the utilization thereof
BASF AG26 citations93
US7259212B2Aug 21, 2007
(Meth)acrylic esters of polyalkoxylated trimethylolpropane
BASF AG42 citations92
US7405321B2Jul 29, 2008
(Meth)acrylic ester of alkenylene glycols and the use thereof
BASF AG31 citations91
US8003728B2Aug 23, 2011
Swellable hydrogel-forming polymers having high permeability
BASF AG7 citations84
US7981969B2Jul 19, 2011
Postcrosslinking of water-absorbing polymers
BASF AG6 citations74
US7714061B2May 11, 2010
Postcrosslinking of water absorbing polymeric particles
BASF AG6 citations74
US7629428B2Dec 8, 2009
Method for producing polymers
BASF AG7 citations74
US7947771B2May 24, 2011
Insoluble metal sulfates in water absorbing polymeric particles
BASF AG2 citations63
CASSELLA FARBWERKE MAINKUR AG
13 patentsUS5331059AJul 19, 1994
Hydrophilic, highly swellable hydrogels
CASSELLA FARBWERKE MAINKUR AG203 citations98
US4309523AJan 5, 1982
Water-soluble copolymer of acrylamidomethylpropanesulfonic acids salts
CASSELLA FARBWERKE MAINKUR AG83 citations96
US5489647AFeb 6, 1996
Hydrophilic, swellable graft polymers
CASSELLA FARBWERKE MAINKUR AG24 citations92
US4357245ANov 2, 1982
Water-soluble copolymer and its preparation
CASSELLA FARBWERKE MAINKUR AG30 citations92
US5668236ASep 16, 1997
Hydrophilic highly swellable hydrogels
CASSELLA FARBWERKE MAINKUR AG37 citations91
US4500437AFeb 19, 1985
Water soluble copolymers for use in fracture-acidizing of wells
CASSELLA FARBWERKE MAINKUR AG48 citations89
US5278206AJan 11, 1994
Binder for liquids
CASSELLA FARBWERKE MAINKUR AG21 citations88
US5066745ANov 19, 1991
Alkenylphosphonic and --phosphinic acid esters, process for their preparation, hydrogels produced using them, and their use
CASSELLA FARBWERKE MAINKUR AG18 citations82
US4959441ASep 25, 1990
Alkenylphosphonic and -phosphinic acid esters, process for their preparation, hydrogels produced using them, and their use
CASSELLA FARBWERKE MAINKUR AG12 citations74
US5594083AJan 14, 1997
Water-swellable hydrophilic polymers
CASSELLA FARBWERKE MAINKUR AG5 citations73
US5681878AOct 28, 1997
Low-dusting pulverulent hydrophilic polymers
CASSELLA FARBWERKE MAINKUR AG16 citations71
US4551513ANov 5, 1985
Water soluble copolymers
CASSELLA FARBWERKE MAINKUR AG12 citations70
US5502231AMar 26, 1996
Process for the preparation of cyclic vinylphosphonic esters
CASSELLA FARBWERKE MAINKUR AG5 citations63
HOECHST AG
4 patentsUS5731365AMar 24, 1998
Hydrophilic, highly swellable hydrogels
HOECHST AG153 citations98
US4749758AJun 7, 1988
Process for the preparation of copolymers of vinylphosphonic acid and (meth) acrylic acid in aqueous solution
HOECHST AG34 citations92
US5510436AApr 23, 1996
Water-soluble copolymers useful in drilling fluids
HOECHST AG37 citations91
US4587283AMay 6, 1986
Cement slurries for deep holes, with a copolymer content for reducing the water loss
HOECHST AG36 citations91
CASSELLA AG
3 patentsUS5011892AApr 30, 1991
Hydrophilic swellable graft copolymers, their preparation and use
CASSELLA AG38 citations93
US5041496AAug 20, 1991
Hydrophilic, swellable graft copolymers, their preparation and use
CASSELLA AG40 citations91
US5274048ADec 28, 1993
Use of glycidyl phosphonates as crosslinkers in the preparation of hydrogels
CASSELLA AG11 citations72
SCHMIDT MATTIAS
2 patents(unassigned)
1 patentHOECHST FRANCE
1 patentBASF CORP
1 patentMEYER AXEL
1 patentCASSELLA
1 patentDANIEL THOMAS
1 patentShowing the top 50 of 65 patents by PatentIndex Score.