Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755692 | Vital safety monitoring circuit | — | 1988-07-05 |
| 4619425 | Pulse code system for railroad track circuits | — | 1986-10-28 |
| 4301490 | Electronic overload protection circuit | John J. Kuhn | 1981-11-17 |