Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966789 | Process of manufacturing seal members having a low friction coefficient | Alfons Knapp | 1990-10-30 |
| 4935313 | Process of manufacturing seal members having a low friction coefficient | Alfons Knapp | 1990-06-19 |
| 4407890 | Rubber articles, particularly moulded rubber articles for use in sanitary fittings | — | 1983-10-04 |