Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5278523 | Temperature-stable tuned-circuit oscillator, especially in a proximity switch | — | 1994-01-11 |
| 5142431 | Output stage for an ac voltage switch | — | 1992-08-25 |
| 5043679 | Temperature-stable inductive proximity switch | Peter Heer | 1991-08-27 |