Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5953304 | Optical disc recording or playback device with corrected focus optical scanning | Christian Buechler | 1999-09-14 |
| 5777976 | Holographic element diffracting a reflected light beam onto a single light spot of a detector | — | 1998-07-07 |