Frederick Eggers

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Dixon, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Intrusion detection system having self-adjusting threshold
- Patent number 5,578,988
- Issue date Nov 26, 1996
- C & K Systems, Inc.
- Paul Hoseit
- G08 - SIGNALLING
Information Patent Grant
Intrusion detector test circuit which automatically disables a dete...
- Patent number 5,499,012
- Issue date Mar 12, 1996
- C & K Systems, Inc.
- Lawrence Tracy
- G08 - SIGNALLING
Information Patent Grant
Location independent intrusion detection system
- Patent number 5,491,467
- Issue date Feb 13, 1996
- C & K Systems, Inc.
- Lawrence R. Tracy
- G08 - SIGNALLING
Information Patent Grant
Infra-red intruder detector
- Patent number D354925
- Issue date Jan 31, 1995
- C & K Systems, Inc.
- Frederick W. Eggers
- D10 - Measuring, testing, or signalling instruments