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Inventor

Frederick W. Eggers

Inventor
Dixon, CA, US

Overview

9→
Patents
1985–2009
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G08Bprimary
G08BSignalling systems, e.g. personal calling systems44%
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general11%
F02PIgnition, other than compression ignition, for internal-combustion engines11%
G01SRadio direction-finding11%
H03KPulse technique11%
H05BElectric heating11%
PatentTitleYear
7,564,365'Smoke detector and method of detecting smoke'20097,019,683'Shipping container security system'20065,578,988'Intrusion detection system having self-adjusting threshold'19965,499,012'Intrusion detector test circuit which automatically disables a detected-event indicator'19965,491,467'Location independent intrusion detection system'1996D0354925'Infra-red intruder detector'19955,032,969'Turbine engine igniter exciter circuit'19914,613,797'Flash strobe power supply'19864,530,037'Flash tube with moving reflectors'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1986Patents assigned to FEDERAL SIGNAL CORP (2)· patent assignee history
1986Based in Folsom, CA, US· patent location history
1991Patents assigned to COOPER IND INC (1)· patent assignee history
1991Based in Redding, CA, US· patent location history
1995–1996Patents assigned to C & K SYSTEMS INC (4)· patent assignee history
1995–1996Based in Dixon, CA, US· patent location history
2006Patents assigned to GEN ELECTRIC (1)· patent assignee history
2006Based in Wilsonville, OR, US· patent location history
2009Patents assigned to GE SECURITY INC (1)· patent assignee history
2009Based in Oregon City, OR, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
C & K SYSTEMS INC41995–1996
FEDERAL SIGNAL CORP21985–1986
COOPER IND INC11991
GE SECURITY INC12009
GEN ELECTRIC12006
Locations
LocationPatentsSpan
Dixon, California, US41995–1996
Oregon City, OR, US12009
Wilsonville, OR, US12006
Redding, California, US11991
Folsom, California, US11986