Issued Patents All Time
Showing 25 most recent of 93 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, Heinrich Hartmann, Axel Kistenmacher | 2003-07-01 |
| 6512055 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Knut Oppenlander, Heinrich Hartmann, Helmut Mach, Harald Schwahn +1 more | 2003-01-28 |
| 6336942 | Processes of treating leather and skins employing polymer compositions | Peter Danisch, Johannes P. Dix, Axel Kistenmacher, Michael Kneip, Hans-Joachim Muller +2 more | 2002-01-08 |
| 6284716 | Copolymers and their reaction products with amines as fuel and lubricant additives | Wolfgang H. H. Gunther, Knut Oppenlander, Heinrich Hartmann, Helmut Mach, Harald Schwahn +1 more | 2001-09-04 |
| 6264839 | Phosphonomethylated polyvinylamines and preparation and use thereof | Juergen Mohr, Knut Oppenlaender, Heinrich Hartmann, Richard Baur, Charalampos Gousetis +1 more | 2001-07-24 |
| 6171583 | Powdery iodine complexes | Jorg Breitenbach, Axel Sanner, Siegfried Lang | 2001-01-09 |
| 6071994 | Formaldehyde-free aqueous binders | Rainer Hummerich, Axel Kistenmacher, Gunnar Schornick, Bernd Reck, Manfred Weber | 2000-06-06 |
| 6060566 | Graft polymers of polymers containing vinyl ester and/or vinyl alcohol units and ethylenically unsaturated compounds, their preparation and their use | Martin Rubenacker, Claudia Nilz, Primoz Lorencak, Dietmar Monch, Rudolf Schuhmacher +1 more | 2000-05-09 |
| 6048945 | Graft polymers comprising polymers, containing alkylene oxide units, and ethylenically unsaturated compounds, their preparation and their use | Martin Rubenacker, Claudia Nilz, Primoz Lorencak, Dietmar Monch, Rudolf Schuhmacher +1 more | 2000-04-11 |
| 6033442 | Use of aqueous solutions or dispersions of copolymers of carboxyl-group-containing monomers, ethylenically unsaturated acetals, ketals or orthocarboxylic acid esters and optionally other copolymerizable monomers as leather tanning agents | Axel Kistenmacher, Gerhard Wolf, Michael Kneip, Norbert Greif, Knut Oppenlander | 2000-03-07 |
| 5914442 | Aqueous solutions or dispersions of copolymers | Hermann Birkhofer, Michael Kneip, Peter Danisch, Axel Kistenmacher, Heinrich Hartmann | 1999-06-22 |
| 5851300 | Cationic modification of starch and use of the cationically modified starch | Friedrich Linhart, Andreas Stange, Rudolf Schuhmacher, Heinrich Hartmann, Manfred Niessner +3 more | 1998-12-22 |
| 5773541 | Preparation of copolymers of vinyl esters and monoethylenically unsaturated carboxylic acids and their use | Dieter Boeckh, Axel Kistenmacher, Iris Rau, Angelika Funhoff, Richard Baur +2 more | 1998-06-30 |
| 5753759 | Graft polymers containing N-vinyl units, their preparation and their use | Heinrich Hartmann, Claudia Nilz | 1998-05-19 |
| 5747619 | Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor | Heinrich Hartmann, 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 | Heinrich Hartmann, Karl-Heinrich Schneider, Claudia Nilz, Dietmar Monch | 1998-04-14 |
| 5739241 | Vinyl formate copolymers, preparation thereof, and use thereof in detergents and cleaners | Dieter Boeckh, Axel Kistenmacher, Thomas Ruhl, Angelika Funhoff, Richard Baur +2 more | 1998-04-14 |
| 5731361 | Production of chlorofluorocarbon-free, urethane-containing moldings having a cellular core and an integral skin | Peter Horn, Harald Fuchs, Ralf Bohme | 1998-03-24 |
| 5714560 | Water-soluble or water-dispersible graft polymers of proteins as leather tanning agents | Axel Kistenmacher, Heinrich Hartmann, Gunter Bernhardt, Gerhard Wolf | 1998-02-03 |
| 5710228 | Maleimide/.alpha.-olefin copolymers and their use as light stabilizers and stabilizers for organic material | Alfred Krause, Albert Hettche, Alexander Aumueller, Hubert Trauth | 1998-01-20 |
| 5698649 | Copolymers based on vinyl ethers and monoethylenically unsaturated dicarboxylic anhydrides, their preparation and their use | Harald Meyer, Axel Sanner, Hans J. Richter, Hans-Juergen Raubenheimer, Franz Frosch | 1997-12-16 |
| 5662781 | Elimination of nitrile impurities from polymers | Heinrich Hartmann, Michael Kroener, Claudia Nilz | 1997-09-02 |
| 5658993 | Water-soluble or water-dispersible graft copolymers, the preparation thereof and the use thereof | Axel Kistenmacher, Johannes Perner, Angelika Funhoff, Birgit Potthoff-Karl, Hans-Jurgen Raubenheimer | 1997-08-19 |
| 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, Heinrich Hartmann, Matthias Kroner | 1997-08-12 |
| 5630907 | Use of hydrolyzed copolymers of N-vinylcarboxamides and monoethylenically unsaturated carboxylic acids in papermaking | Claudia Nilz, Heinrich Hartmann, Michael Kroener, Friedrich Linhart, Rudolf Schuhmacher +2 more | 1997-05-20 |