Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8771374 | Method for the production of leather, copolymers that are suitable therefor, and further uses thereof | Markus Brym, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn +3 more | 2014-07-08 |
| 8642185 | Leather production and aqueous formulations suitable therefor | Edward Bohres | 2014-02-04 |
| 6336942 | Processes of treating leather and skins employing polymer compositions | Johannes P. Dix, Walter Denzinger, Axel Kistenmacher, Michael Kneip, Hans-Joachim Muller +2 more | 2002-01-08 |
| 6200640 | Polymer composition and process for treating leather and fur skins | Michael Kneip, Axel Kistenmacher, Gerhard Wolf | 2001-03-13 |
| 5914442 | Aqueous solutions or dispersions of copolymers | Hermann Birkhofer, Michael Kneip, Walter Denzinger, Axel Kistenmacher, Heinrich Hartmann | 1999-06-22 |
| 5702490 | Water repellent treatment of leather and skins with polysiloxanes functionalized with carboxyl groups in a comb-like manner | Michael Kneip | 1997-12-30 |
| 5620748 | Use of graft polymers for fatliquoring and filling leather and fur skins | Hermann Birkhofer, Walter Denzinger, Heinrich Hartmann, Michael Kneip | 1997-04-15 |
| 5527360 | Fatliquoring, filling and hydrophobicizing leathers and furs | Hermann Birkhofer, Norbert Greif, Knut Oppenlaender | 1996-06-18 |
| 5433752 | Use of rection products of Homo- or copolymers based on monoethylenically unsaturated dicarboxylic anhydrides with amines or alcohols for fatliquoring and filling leather and fur skins | Hermann Birkhofer, Walter Denzinger, Heinrich Hartmann, Norbert Greif, Knut Oppenlaender | 1995-07-18 |