Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652316 | Universally compatible pigment dispersants | Werner Hoss, Gerhard Markert, Werner Siol | 1997-07-29 |
| 5650228 | Replacement surface for bathtub and shower floor | — | 1997-07-22 |