Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6038286 | Optical arrangement and method for electronically detecting an X-ray image | Ruedi G. Laupper | 2000-03-14 |
| 5920604 | Optical arrangement and process for transmitting and converting primary X-ray images | Ruedi G. Laupper | 1999-07-06 |
| 4746910 | Passive infrared intrusion detector employing correlation analysis | Gustav Pfister | 1988-05-24 |
| 4734575 | Light barrier utilizing two radiation branches each having differently polarized filters | Kurt Muller | 1988-03-29 |
| 4598271 | Circuit arrangement for monitoring noise levels of detectors arranged in an alarm installation | Stefan Temperli | 1986-07-01 |
| 4429223 | Infrared intrusion detector | — | 1984-01-31 |
| 4429224 | Optical arrangement for an infrared intrusion detector | Alois Zetting, Gustav Pfister | 1984-01-31 |