Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336942 | Processes of treating leather and skins employing polymer compositions | Peter Danisch, Johannes P. Dix, Walter Denzinger, Axel Kistenmacher, Hans-Joachim Muller +2 more | 2002-01-08 |
| 6200640 | Polymer composition and process for treating leather and fur skins | Axel Kistenmacher, Peter Danisch, Gerhard Wolf | 2001-03-13 |
| 6110230 | Use of carboxyamide-polysiloxanes for water proofing leather | Holger Friedrich, Bernd Leutner | 2000-08-29 |
| 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 | Walter Denzinger, Axel Kistenmacher, Gerhard Wolf, Norbert Greif, Knut Oppenlander | 2000-03-07 |
| 6007801 | Use of carboxyl-containing polysiloxanes in cosmetic formulations | Peter Hossel, Norbert Greif | 1999-12-28 |
| 5914442 | Aqueous solutions or dispersions of copolymers | Hermann Birkhofer, Peter Danisch, Walter Denzinger, Axel Kistenmacher, Heinrich Hartmann | 1999-06-22 |
| 5733342 | Hydroxamic acids and hydroxamic acid ethers, and the use thereof as complexing agents | Thomas Greindl, Alexander Kud, Volker Schwendemann, Elisabeth Kappes, Richard Baur +3 more | 1998-03-31 |
| 5702490 | Water repellent treatment of leather and skins with polysiloxanes functionalized with carboxyl groups in a comb-like manner | Peter Danisch | 1997-12-30 |
| 5620748 | Use of graft polymers for fatliquoring and filling leather and fur skins | Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann | 1997-04-15 |
| 5530159 | Preparation of .alpha.-alaninediacetic acid or its alkali metal or ammonium salts | Juergen Schneider, Alfred Oftring | 1996-06-25 |
| 5112530 | Use of 2-hydroxy-3-aminopropionic acid derivatives as complexing agents, bleach stabilizers and builders in detergent compositions | Richard Baur, Charalampos Gousetis, Stefan Birnbach, Alfred Oftring | 1992-05-12 |