Issued Patents All Time
Showing 25 most recent of 149 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6586534 | Agglomerated particles of finely divided polymers which are water-soluble or capable of swelling in water and contain ammonium carboxylate groups | Martin Rubenacker, Reinhard Schneider, Jurgen Nieberle, Walter Denzinger, Axel Kistenmacher | 2003-07-01 |
| 6512055 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Knut Oppenlander, Walter Denzinger, Helmut Mach, Harald Schwahn +1 more | 2003-01-28 |
| 6284716 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Knut Oppenlander, Walter Denzinger, Helmut Mach, Harald Schwahn +1 more | 2001-09-04 |
| 6264839 | Phosphonomethylated polyvinylamines and preparation and use thereof | Juergen Mohr, Knut Oppenlaender, Walter Denzinger, Richard Baur, Charalampos Gousetis +1 more | 2001-07-24 |
| 6174946 | Agglomerated particles of water-swellable addition polymers, preparation thereof and use thereof | Martin Rubenacker, Reinhard Schneider, Jurgen Nieberle, Harald Meyer | 2001-01-16 |
| 5914442 | Aqueous solutions or dispersions of copolymers | Hermann Birkhofer, Michael Kneip, Peter Danisch, Walter Denzinger, Axel Kistenmacher | 1999-06-22 |
| 5880236 | Water-thickening copolymers of acrylic and N-alkylmaleamic monomers | Gerd Konrad | 1999-03-09 |
| 5851300 | Cationic modification of starch and use of the cationically modified starch | Friedrich Linhart, Andreas Stange, Rudolf Schuhmacher, Walter Denzinger, Manfred Niessner +3 more | 1998-12-22 |
| 5795926 | Preparation of finely divided polymer powders | Manfred Niessner, Norbert Grund, Wilfried Heide | 1998-08-18 |
| 5767202 | Modified copolymers suitable as paraffin dispersants, their preparation and use and mineral oil middle distillates containing them | Gabriele Dralle-Voss, Knut Oppenlander, Dieter Faul, Joachim Roser, Bernd Wenderoth | 1998-06-16 |
| 5753759 | Graft polymers containing N-vinyl units, their preparation and their use | Walter Denzinger, Claudia Nilz | 1998-05-19 |
| 5747635 | Modified polyaspartic acids, preparation thereof and use thereof | Matthias Kroner, Dieter Boeckh, Angelika Funhoff, Richard Baur, Alexander Kud +3 more | 1998-05-05 |
| 5747619 | Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor | Walter Denzinger, Birgit Potthoff-Karl, Karl-Heinz Buechner, Marc Heider, Hans-Juergen Raubenheimer | 1998-05-05 |
| 5739190 | Process for the preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinyl amides and the use thereof | Karl-Heinrich Schneider, Walter Denzinger, Claudia Nilz, Dietmar Monch | 1998-04-14 |
| 5726266 | Copolymers based on diketenes, ethylenically unsaturated dicarboxylic acids or dicarboxylic acid derivatives and ethylenically unsaturated hydrocarbons | Dieter Faul, Joachim Roser, Gabriele Dralle-Voss, Knut Oppenlander, Bernd Wenderoth | 1998-03-10 |
| 5714560 | Water-soluble or water-dispersible graft polymers of proteins as leather tanning agents | Walter Denzinger, Axel Kistenmacher, Gunter Bernhardt, Gerhard Wolf | 1998-02-03 |
| 5684107 | Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers, the preparation thereof and the use thereof | Reinhard Schneider, Norbert Grund | 1997-11-04 |
| 5662781 | Elimination of nitrile impurities from polymers | Walter Denzinger, Michael Kroener, Claudia Nilz | 1997-09-02 |
| 5661220 | Reaction products of olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifiers for crude oil emulsions | Dieter Faul, Joachim Roser, Hans-Henning Vogel, Wilhelmus Slotman, Gerd Konrad | 1997-08-26 |
| 5656646 | Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and/or polyaminocarboxylic acids and their use | Johannes Perner, Paul Diessel, Helmut Guembel, Walter Denzinger, Matthias Kroner | 1997-08-12 |
| 5653815 | Process for solid-liquid extraction and extraction tower for carrying out the process | Dieter Hellmig, Siegfried Matusch, Guenter Pohner, Guenther Ross, Florian Sosnitza | 1997-08-05 |
| 5639723 | Reaction products of polybasic carboxylic acids and amino-containing compounds, their preparation and their use in detergents and cleaning agents | Matthias Kroner, Dieter Boeckh, Richard Baur, Alexander Kud, Volker Schwendemann | 1997-06-17 |
| 5630907 | Use of hydrolyzed copolymers of N-vinylcarboxamides and monoethylenically unsaturated carboxylic acids in papermaking | Claudia Nilz, Walter Denzinger, Michael Kroener, Friedrich Linhart, Rudolf Schuhmacher +2 more | 1997-05-20 |
| 5620748 | Use of graft polymers for fatliquoring and filling leather and fur skins | Hermann Birkhofer, Peter Danisch, Walter Denzinger, Michael Kneip | 1997-04-15 |
| 5599898 | Insoluble, only slightly swellable polymers containing amino groups, their preparation and their use | Walter Denzinger, Michael Kroener, Claudia Nilz | 1997-02-04 |