Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703249 | Bicycloaliphatic 2-methylene-1,3-dioxepanes | Volker Rheinberger, Norbert Moszner, Thomas Voelkel | 1997-12-30 |
| 5698020 | Photochromic dental material | Peter Burtscher, Volker Rheinberger, Heinz Durr | 1997-12-16 |