Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298727 | Device for reading bar codes on semiconductor surfaces | Norbert Aldiek | 1994-03-29 |
| 5180910 | Light barrier with retroreflector and optical means | Rudiger Pepperl | 1993-01-19 |
| 5175425 | Process for marking semiconductor surfaces | Werner Reindl | 1992-12-29 |
| 4405858 | Light gate with controlled optical couplers | — | 1983-09-20 |