Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4409979 | Device for observing and treating the eye using a laser | Philippe Roussel, Eugen van der Zypen | 1983-10-18 |
| 4391275 | Method for the surgical treatment of the eye | Eugen van der Zypen, Philippe Roussel | 1983-07-05 |