Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890906 | Rotary optical switch having make-before-break feature | Joseph L. Betthauser | 1990-01-02 |
| 4716297 | Method and apparatus for optically switching current | Joseph L. Betthauser | 1987-12-29 |
| 4634877 | Optical transmitter receiver switch | — | 1987-01-06 |