Inventor
PFISTER GUSTAV
CH8 patents
⚠️ This page may combine multiple inventors who share the name “PFISTER GUSTAV”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CERBERUS AG
7 patentsUS4746910AMay 24, 1988
Passive infrared intrusion detector employing correlation analysis
CERBERUS AG118 citations94
US4379290AApr 5, 1983
Alarm device with a condition sensor element
CERBERUS AG28 citations92
US4429224AJan 31, 1984
Optical arrangement for an infrared intrusion detector
CERBERUS AG50 citations91
US4642471AFeb 10, 1987
Scattered radiation smoke detector
CERBERUS AG38 citations90
US4551710ANov 5, 1985
Method and apparatus for reporting dangerous conditions
CERBERUS AG30 citations89
US4543815AOct 1, 1985
Device for the detection of foreign components in a gas and an application of the device
CERBERUS AG41 citations89
US4567475AJan 28, 1986
Gas or vapor alarm system including scanning gas sensors
CERBERUS AG37 citations85