Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6013914 | Circuit for detecting electromagnetic radiation | — | 2000-01-11 |
| 4967081 | Infrared detector | Reiner Quad, Udo Ringelstein, Fred Plotz | 1990-10-30 |
| 4752769 | Infrared motion alarm | Fred Plotz, Norbert Schaaf | 1988-06-21 |