Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5873908 | Alkoxy group containing copolymers and their use in retanning leather | Kurt Dahmen, Richard Mertens, Helmut Brehm, Jochen Houben, Thomas Muller | 1999-02-23 |
| 5433753 | Use of copolymers having polysiloxane units in the treatment of leather and furs | Kurt Dahmen, Richard Mertens, Manfred Kaussen, Helmut Lohmann | 1995-07-18 |