Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902357 | Composition for dyeing or printing textile materials | Martin Riegels, Uwe Vogt, Klaus Walz, Fritz Lesszinsky, Bernd Konemund +1 more | 1999-05-11 |
| 5885474 | Use of polyaspartic acid amides as leather auxiliary products | Jurgen Reiners, Manfred Schnee, Torsten Groth, Gerd Schmitz, Harro Traubel +1 more | 1999-03-23 |
| 5874025 | Timber preservative containing a copper compound | Lutz Heuer, Torsten Groth | 1999-02-23 |
| 5804639 | Pigment preparations having a high solids content | Gert Schopwinkel, Kai Butje, Gunter Wieghaus, Richard Bathke, Torsten Groth | 1998-09-08 |
| 5801276 | Process for the preparation of hydroxypivalic acid | Karl H. Neumann, Dieter Heitkamp, Helmut Fiege | 1998-09-01 |
| 5795707 | Photographic silver halide material | Klaus Wagner, Gunter Helling, Torsten Groth | 1998-08-18 |
| 5773630 | Process for the preparation of N-substituted cyclic imides | Torsten Groth, Karl-Erwin Piejko, Josef Kasbauer, Bernd Alig, Werner Struver | 1998-06-30 |
| 5739393 | Process for the preparation of polymers with recurring succinyl units | Paul Wagner, Frank Dobert, Torsten Groth | 1998-04-14 |
| 5726280 | Sulfonic acid group-containing polyaspartic acid derivatives, use thereof and prepartion thereof | Hermann Uhr, Lutz Heuer, Torsten Groth, Roland Kleinstuck | 1998-03-10 |
| 5714558 | Process for preparing polyaspartic acid | Torsten Groth, Nikolaus Muller | 1998-02-03 |
| 5679761 | Iminodisuccinate-containing polymers | Lutz Heuer, Torsten Groth, Hans-Joachim Traenckner, Nikolaus Muller, Hermann Uhr +8 more | 1997-10-21 |
| 5618910 | Process for decolorizing N-containing polymers | Torsten Groth, Lutz Heuer, Gerd Schmitz | 1997-04-08 |
| 5610255 | Process for preparing polysuccinimide and polyaspartic acid | Torsten Groth, Nikolaus M uller, Ulrich Liesenfelder | 1997-03-11 |
| 5594077 | Process for preparing polymers which contain aspartic acid | Torsten Groth, Paul Wagner, Hans-Joachim Traenckner, Dorde Jovcic | 1997-01-14 |
| 5580355 | Leather tanning agent and standardizing agents for dyestuffs | Torsten Groth, Ulrich Muller, Bruno Bomer, Guido Martin Bomer, Harro Traubel | 1996-12-03 |
| 5543490 | Process for the preparation of polysuccinimide, polyaspartic acid and salts thereof, and the use of these compounds | Torsten Groth, Hans W. Linden, Nikolaus Muller, Heinz-Joachim Rother, Paul Wagner +1 more | 1996-08-06 |
| 5530091 | Process for the production of polysuccinimide or maleic amide acid | Paul Wagner, Dietrich Gehrmann, Thomas Bamberger, Manfred Giltjes, Torsten Groth | 1996-06-25 |
| 5523023 | Water treatment/cleaning composition comprising polyaspartic acid or derivatives thereof and phosphonic acid | Roland Kleinstuck, Hermann Sicius, Torsten Groth | 1996-06-04 |
| 5506335 | Sulfonic acid group-containing polyaspartic acid derivatives, use thereof and preparation thereof | Hermann Uhr, Lutz Heuer, Torsten Groth, Roland Kleinstuck | 1996-04-09 |
| 5493004 | Process for the preparation of polysuccinimide | Torsten Groth, Dorde Jovcic, Paul Wagner, Hans-Joachim Traenckner | 1996-02-20 |
| 5371180 | Process for the preparation of polysuccinimide and polyaspartic acid | Torsten Groth, Gunter Boehmke, Gerd Schmitz, Hans-Joachim Traenckner | 1994-12-06 |
| 5059716 | Process for the preparation of aldehydes | Helmut Fiege | 1991-10-22 |