Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127729 | Method and apparatus for guiding and collecting light in photometry or the like | Hans Oetliker, Sonia Stempeel | 1992-07-07 |
| 4943159 | Method and apparatus for guiding and collecting light in photometry or the like | Hans Oetliker, Sonja Stempfel | 1990-07-24 |