| 11069226 |
Smoke detector methods and systems |
Thomas Bachels, Aleksandar Duric, Erwin Suter |
2021-07-20 |
| 9767665 |
Optical smoke detection unit for a smoke detector, with two light-emitting diodes optically coupled together and with an associated control unit for the deduction of aging information and a smoke detector |
Aleksandar Duric |
2017-09-19 |
| 9541501 |
Scattered-light smoke detector with a two-color light-emitting diode |
Brigitt Schmid, Stefan Walker |
2017-01-10 |
| 6559448 |
Passive infrared detector |
Kurt Muller |
2003-05-06 |
| 5942976 |
Passive infrared intrusion detector and its use |
Dieter Wieser, Kurt Muller, Michael T. Gale, Thomas Hessler |
1999-08-24 |
| 5608220 |
Infrared intrusion detector with a multi-layer mirror |
Dieter Wieser, Rene Lange |
1997-03-04 |
| 5424718 |
IR intrusion detector using scattering to prevent false alarms |
Kurt Muller, Rene Lange |
1995-06-13 |
| 5089702 |
ICR ion trap |
Pablo Caravatti |
1992-02-18 |
| 5019706 |
Ion cyclotron resonance spectrometer |
Pablo Caravatti |
1991-05-28 |
| 4982087 |
ICR ion trap |
Pablo Caravatti |
1991-01-01 |
| 4818864 |
Method for eliminating undesirable charged particles from the measuring cell of an ICR spectrometer |
— |
1989-04-04 |
| 4563579 |
Procedure for recording ion-cyclotron-resonance spectra and apparatus for carrying out the procedure |
Hanspeter Kellerhals |
1986-01-07 |
| 4500782 |
Method of calibrating ion cyclotron resonance spectrometers |
Hanspeter Kellerhals |
1985-02-19 |
| 4464570 |
Method for ion cyclotron resonance spectroscopy |
Hanspeter Kellerhals |
1984-08-07 |