Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559147 | Optical immersion oil | Georges Hirth, Martin Petrzilka | 1985-12-17 |
| 4493533 | Immersion oil containing aliphatic thio compounds | Martin Petrzilka, Urs Ruf | 1985-01-15 |
IP
Inge Pracht
Overall (All Time): #2,351,169 of 4,157,543Top 60%
2
Patents All Time