Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4439380 | Photopolymerizable composition, especially for dental purposes | Hanspeter Willi | 1984-03-27 |
| 4330283 | Synthetic dental compositions for production of dental restorations, and dental restorations produced therefrom | Hanspeter Willi | 1982-05-18 |
| 4281991 | Dental prostheses | Peter Wollwage | 1981-08-04 |
| 4267097 | Material for dental purposes | Peter Wollwage | 1981-05-12 |
| 4236922 | Dental alloy of bismuth-tin with additions of Ag, Sb and Cu | Peter Dorsch | 1980-12-02 |