Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746910 | Passive infrared intrusion detector employing correlation analysis | Peter Wagli | 1988-05-24 |
| 4642471 | Scattered radiation smoke detector | Hannes Guttinger | 1987-02-10 |
| 4567475 | Gas or vapor alarm system including scanning gas sensors | Stanislaw Bukowiecki, Alfons Reis, Alan Troup, Hans-Peter Ulli | 1986-01-28 |
| 4551710 | Method and apparatus for reporting dangerous conditions | Alan Troup, Hannes Guttinger | 1985-11-05 |
| 4543815 | Device for the detection of foreign components in a gas and an application of the device | Alan Troup, Sigfrid Strassler, Hannes Guttinger | 1985-10-01 |
| 4429224 | Optical arrangement for an infrared intrusion detector | Peter Wagli, Alois Zetting | 1984-01-31 |
| 4379290 | Alarm device with a condition sensor element | Jurg Muggli | 1983-04-05 |