Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388832 | Method and apparatus for receiving ultrasonic waves by optical means | — | 1983-06-21 |
| 4381676 | Apparatus for sensing ultrasonic waves by optical means | Erik Primbsch | 1983-05-03 |
| 4379633 | Apparatus for maintaining adjustment of coincidence and relative phase relationship of light beams in an interferometer | Wolf Bickel, Erik Primbsch | 1983-04-12 |
| 4313092 | Laser apparatus with lamp change means | — | 1982-01-26 |