Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698020 | Photochromic dental material | Ulrich Salz, Peter Burtscher, Volker Rheinberger | 1997-12-16 |
| 4983324 | Pyrrolo[1,2-b]azines | Volker Bach | 1991-01-08 |
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Heinz Durr
Ivoclar Ag: 1 patents #33 of 60Top 60%
Overall (All Time): #2,275,094 of 4,157,543Top 55%
2
Patents All Time