Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4792764 | Noncontact electronic switching arrangement | Hans-Dieter Riedel | 1988-12-20 |
| 4649527 | Ultrasonic proximity switch | Alfred Forster, Helmut Riss | 1987-03-10 |
| 4455528 | Oscillator coil sensing head for contactless inductive proximity switch | — | 1984-06-19 |