Gustav Pfister

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Uerikon-Stafa, CH

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Patents Grantslast 30 patents

Information Patent Grant
Passive infrared intrusion detector employing correlation analysis
- Patent number 4,746,910
- Issue date May 24, 1988
- Cerberus AG
- Gustav Pfister
- G08 - SIGNALLING
Information Patent Grant
Scattered radiation smoke detector
- Patent number 4,642,471
- Issue date Feb 10, 1987
- Cerberus AG
- Hannes Guttinger
- G08 - SIGNALLING
Information Patent Grant
Gas or vapor alarm system including scanning gas sensors
- Patent number 4,567,475
- Issue date Jan 28, 1986
- Cerberus AG
- Stanislaw Bukowiecki
- G08 - SIGNALLING
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Method and apparatus for reporting dangerous conditions
- Patent number 4,551,710
- Issue date Nov 5, 1985
- Cerberus AG
- Alan P. Troup
- G08 - SIGNALLING
Information Patent Grant
Device for the detection of foreign components in a gas and an appl...
- Patent number 4,543,815
- Issue date Oct 1, 1985
- Cerberus AG
- Alan Troup
- G08 - SIGNALLING
Information Patent Grant
Optical arrangement for an infrared intrusion detector
- Patent number 4,429,224
- Issue date Jan 31, 1984
- Cerberus AG
- Peter Wagli
- G08 - SIGNALLING
Information Patent Grant
Alarm device with a condition sensor element
- Patent number 4,379,290
- Issue date Apr 5, 1983
- Cerberus AG
- Jurg Muggli
- G08 - SIGNALLING