Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657397 | Light collector and its use for spectroscopic purposes | Oskar Oehler, David Sourlier | 1987-04-14 |
| 4557603 | Detection means for the selective detection of gases, based on optical spectroscopy | Oskar Oehler | 1985-12-10 |