Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5747619 | Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor | Walter Denzinger, Heinrich Hartmann, Birgit Potthoff-Karl, Karl-Heinz Buechner, Marc Heider | 1998-05-05 |
| 5698649 | Copolymers based on vinyl ethers and monoethylenically unsaturated dicarboxylic anhydrides, their preparation and their use | Harald Meyer, Walter Denzinger, Axel Sanner, Hans J. Richter, Franz Frosch | 1997-12-16 |
| 5227446 | Graft copolymers of monosaccharides, oligosaccharides, polysaccharides and modified polysaccharides, the preparation thereof, and their use | Walter Denzinger, Heinrich Hartmann, Alexander Kud, Richard Baur, John Feldmann | 1993-07-13 |
| 5178641 | Middle distillates of crude oil having improved cold flow properties | Gerd Konrad, Bernd Wenderoth, Klaus Barthold, Erich Schwartz, Heinrich Hartmann | 1993-01-12 |
| 5175361 | Preparation of copolymers of monoethylenically unsaturated monocarboxylic acids and dicarboxylic acids | Walter Denzinger, Heinrich Hartmann, Wolfgang Trieselt, Albert Hettche, Rolf Schneider | 1992-12-29 |
| 5155171 | Preparation of copolymers of monoalkyl maleates or maleic acid and salts thereof and vinyl alkyl ethers | Harald Meyer, Axel Sanner, Franz Frosch | 1992-10-13 |
| 5126069 | Water-soluble or -dispersible, oxidized polymer detergent additives | Alexander Kud, Richard Baur, Angelika Funhoff, Walter Denzinger, Heinrich Hartmann | 1992-06-30 |
| 5084535 | Preparation of pulverulent polymers of acrylic and/or methacrylic acid and use thereof | Karl Hennig, Heinrich Hartmann, Hermann Fischer, Walter Denzinger | 1992-01-28 |
| 5073269 | Preparation of water-soluble copolymers of maleic acid and use thereof as water treatment agents | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler | 1991-12-17 |
| 5010150 | Controlling the particle size in the preparation of polymer powders | Karl Hennig, Heinrich Hartmann | 1991-04-23 |
| 5008032 | Use of partially esterified copolymers in liquid detergents | Paul Diessel, Johannes Perner, Walter Denzinger, Heinrich Hartmann | 1991-04-16 |
| 4956421 | Preparation of oxyalkylated, carboxyl-containing polymers | Walter Denzinger, Heinrich Hartmann, Richard Baur, Johannes Perner, Wolfgang Trieselt +1 more | 1990-09-11 |
| 4952558 | Preparation of copolymers of ethylenically unsaturated dicarboxylic anhydrides and alkyl vinyl ethers | Hans-Helmut Goertz, Walter Denzinger | 1990-08-28 |
| 4929690 | Preparation of metal salts of carboxyl-containing polymers | Hans-Helmut Goertz, Walter Denzinger | 1990-05-29 |
| 4908413 | Preparation of copolymers of monoalkyl maleates and vinyl alkyl ethers | Hans-Helmut Goertz, Ferdinand Straub, Friedrich Vogel, Franz Frosch, Paul Naegele | 1990-03-13 |
| 4841066 | Preparation of 3-methyl-1-vinylimidazolium chlorides | Hans-Helmut Goertz, Ferdinand Straub, Axel Sanner, Albrecht Kolb, Friedrich Vogel | 1989-06-20 |
| 4818794 | Slightly crosslinked, water-soluble polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler | 1989-04-04 |
| 4818795 | Polymaleic acid, its preparation and its use | Walter Denzinger, Heinrich Hartmann, Ulrich Goeckel, Felix Richter, Ekhard Winkler | 1989-04-04 |
| 4814102 | Detergents containing oxyalkylated, carboxyl-containing polymers | Richard Baur, Walter Denzinger, Albrecht Eckell, Heinrich Hartmann, Josef Mueller +1 more | 1989-03-21 |
| 4729877 | Apparatus for the solid-bed polymerization of monomers | Karl Hennig, Karlheinz Messmer, Guenter Hoerdt, Gerhard KLEINPETER, Werner Hoffmann | 1988-03-08 |
| 4725655 | Preparation of copolymers of monoethylenically unsaturated mono- and dicarboxylic acids and anhydrides | Walter Denzinger, Heinrich Hartmann, Wolfgang Trieselt, Albert Hettche, Rolf Schneider | 1988-02-16 |
| 4698174 | Additives for detergents and cleaning agents | Walter Denzinger, Heinrich Hartmann, Wolfgang Trieselt, Albert Hettche, Rolf Schneider | 1987-10-06 |
| 4670524 | Preparation of water-soluble polymer powders and their use | Karlheinz Messmer, Karl Hennig, Walter Denzinger, Albert Hettche, Wolfgang Trieselt | 1987-06-02 |
| 4621127 | Preparation of carboxyl-containing polymers | Walter Denzinger, Heinrich Hartmann, Johannes Perner | 1986-11-04 |
| 4370454 | Preparation of maleic anhydride copolymers | Karlheinz Messmer, Hermann Fischer, Heinrich Hartmann, Walter Denzinger, Rolf Schneider +1 more | 1983-01-25 |