P

Inventor

GALVIN AARON A

34 patents
⚠️ This page may combine multiple inventors who share the name “GALVIN AARON A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMERICAN DISTRICT TELEGRAPH CO

28 patents
US4206449AJun 3, 1980

Multiple sensor intrusion alarm system

AMERICAN DISTRICT TELEGRAPH CO199 citations97
US4321594AMar 23, 1982

Passive infrared detector

AMERICAN DISTRICT TELEGRAPH CO124 citations96
US4195286AMar 25, 1980

Alarm system having improved false alarm rate and detection reliability

AMERICAN DISTRICT TELEGRAPH CO71 citations96
US4051467ASep 27, 1977

Fluid flow detector for a fire alarm system

AMERICAN DISTRICT TELEGRAPH CO58 citations96
US4636774AJan 13, 1987

Variable sensitivity motion detector

AMERICAN DISTRICT TELEGRAPH CO72 citations95
US4544836AOct 1, 1985

Optically-based access control system

AMERICAN DISTRICT TELEGRAPH CO93 citations95
US4679881AJul 14, 1987

Electrical interconnection apparatus and technique

AMERICAN DISTRICT TELEGRAPH CO42 citations92
US4321592AMar 23, 1982

Multiple sensor intrusion detection system

AMERICAN DISTRICT TELEGRAPH CO29 citations92
US4614968ASep 30, 1986

Contrast smoke detector

AMERICAN DISTRICT TELEGRAPH CO52 citations91
US4538138AAug 27, 1985

Integrated security system having a multiprogrammed controller

AMERICAN DISTRICT TELEGRAPH CO87 citations91
US4427888AJan 24, 1984

Infrared imaging system

AMERICAN DISTRICT TELEGRAPH CO25 citations82
US4131888ADec 26, 1978

Dual projected-beam smoke detector

AMERICAN DISTRICT TELEGRAPH CO20 citations82
US4023156AMay 10, 1977

Alarm system for detecting disturbance of a solid medium

AMERICAN DISTRICT TELEGRAPH CO23 citations82
US3932870AJan 13, 1976

On-line test circuit for intrusion alarm systems

AMERICAN DISTRICT TELEGRAPH CO24 citations82
US4423410ADec 27, 1983

Two-wire multi-zone alarm system

AMERICAN DISTRICT TELEGRAPH CO25 citations81
US4359721ANov 16, 1982

Two-wire multi-zone alarm system

AMERICAN DISTRICT TELEGRAPH CO20 citations81
US4032916AJun 28, 1977

Intrusion alarm cable supervision system

AMERICAN DISTRICT TELEGRAPH CO21 citations77
US4331952AMay 25, 1982

Redundant sensor adapter

AMERICAN DISTRICT TELEGRAPH CO22 citations76
US4383250AMay 10, 1983

System for intrusion detection

AMERICAN DISTRICT TELEGRAPH CO13 citations74
US4491828AJan 1, 1985

Two-wire multi-zone alarm system

AMERICAN DISTRICT TELEGRAPH CO19 citations73
US4024519AMay 17, 1977

Intrusion alarm test system

AMERICAN DISTRICT TELEGRAPH CO7 citations73
US3938118AFeb 10, 1976

Multizone intrusion alarm system

AMERICAN DISTRICT TELEGRAPH CO7 citations73
US4468664AAug 28, 1984

Non-home run zoning system

AMERICAN DISTRICT TELEGRAPH CO14 citations72
US4303908ADec 1, 1981

Electronic sounder

AMERICAN DISTRICT TELEGRAPH CO18 citations72
US4117479ASep 26, 1978

Multi-mode intrusion alarm system

AMERICAN DISTRICT TELEGRAPH CO19 citations69
US4155066AMay 15, 1979

Transducer structure

AMERICAN DISTRICT TELEGRAPH CO9 citations66
US4134110AJan 9, 1979

Transceiver with skewed transducers for low close-in sensitivity

AMERICAN DISTRICT TELEGRAPH CO2 citations63
US3946376AMar 23, 1976

Multiple zone intrusion alarm system

AMERICAN DISTRICT TELEGRAPH CO5 citations63

ADT INC

4 patents

GALVIN AARON A

1 patent

AMERICAN DISTR TELEGRAPH COMPANY

1 patent