Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867790 | Dental composition containing an aziridine compound and method of preparation | Peter Jochum, Oswald Gasser, Gunther Lechner, Klaus Ellrich | 1989-09-19 |
| 4795823 | (Meth)acrylic acid esters and the use thereof for preparing dental compositions | Werner Schmitt, Peter Jochum, Heijo Hubner, Manfred Holupirek, Oswald Gasser +1 more | 1989-01-03 |