| Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025) |
|---|
| 03/25/1980 | US4194461 Door alarm toy |
| 03/18/1980 | US4194194 Piezoelectric vibration detector for sensing a nearby intruder |
| 03/18/1980 | US4194193 Self-contained door alarm device |
| 03/18/1980 | US4194192 Alarm devices for interconnected multi-device systems |
| 03/11/1980 | US4193067 Closure operated burglar alarm |
| 03/06/1980 | WO1980000386A1 System for the registration of the passage of articles through a previously determined field |
| 03/04/1980 | US4191953 Intrusion sensor and aerial therefor |
| 03/04/1980 | US4191947 Intrusion alarm system |
| 03/04/1980 | CA1073076A1 Beat frequency interference rejection circuitry |
| 02/26/1980 | US4190866 Surveillance device incorporating a television camera |
| 02/26/1980 | US4190828 Movement sensitive anti-theft alarm |
| 02/26/1980 | CA1072653A1 Theft detection system |
| 02/19/1980 | US4189723 Electrical receptacle provided with an alarm system |
| 02/19/1980 | US4189719 Intrusion alarm systems |
| 02/19/1980 | US4189701 Hydroacoustic detection system |
| 02/12/1980 | US4188621 Alarm system |
| 02/12/1980 | US4187797 Threshold plate door alarm |
| 02/05/1980 | US4187509 Wafer and fastener for use in electronic theft detection system |
| 02/05/1980 | US4187501 Electronic intruder detection system |
| 01/29/1980 | US4186362 Switch |
| 01/29/1980 | US4186325 Cable supported piezoelectric bender intrusion detector array |
| 01/23/1980 | EP0006926A1 Pre-intrusion detection device |
| 01/22/1980 | US4185192 Alignment system using two photocells directed at each other |
| 01/10/1980 | WO1980000044A1 Conduits protected against sabotage,for security installations and installation thereof within a protection network |
| 01/08/1980 | US4183019 Money clip with light sensitive detector |
| 01/08/1980 | CA1069603A1 Pilferage detection systems |
| 12/25/1979 | US4180811 Detecting device for destructive vibration of structures |
| 12/18/1979 | US4179691 Infrared intrusion detector circuit |
| 12/12/1979 | EP0006010A1 Anti-theft system for automotive vehicles |
| 12/12/1979 | EP0005853A1 Light barrier apparatus including an alignement aid |
| 12/11/1979 | US4178588 Burglar alarm system |
| 12/11/1979 | US4178587 Security lock system |
| 11/29/1979 | WO1979001028A1 Switch device for controlling the closure of folding doors |
| 11/28/1979 | EP0005596A1 Regenerative feedback intruder alarm apparatus |
| 11/27/1979 | US4176348 Electronic security device |
| 11/27/1979 | US4175780 Latch mechanism |
| 11/27/1979 | CA1067173A1 Charge sensitive switch |
| 11/15/1979 | WO1979000902A1 Alarm device partly mobile with protection against failure to operate,breakdown,sabotage and false alarm |
| 11/14/1979 | EP0005352A1 Radiation detection intruder alarm apparatus |
| 11/13/1979 | US4174518 Intrusion warning system |
| 11/06/1979 | US4173755 Battery-operated body capacitance intrusion alarm apparatus |
| 10/23/1979 | US4172254 Merchandise case with door lock alarm |
| 10/23/1979 | US4172253 Controlled wave pattern ultrasonic burglar alarm |
| 10/16/1979 | CA1064606A1 Apparatus for detecting the breakage of an acoustically conductive medium |
| 10/09/1979 | US4170769 Audio-detector alarm |
| 10/02/1979 | US4170005 Switch operated alarm circuit |
| 09/25/1979 | US4169260 Capacitive intrusion detector circuitry utilizing reference oscillator drift |
| 09/19/1979 | EP0004048A2 Security fence for safeguarding particularly threatened objects |
| 09/18/1979 | US4168496 Quasi-stationary noise cancellation system |
| 09/18/1979 | US4168495 Pre-intrusion detection device |
| 09/11/1979 | US4167733 Tamper-proof security alarm system |
| 09/11/1979 | US4167732 Multi-apartment building combination communication and security circuit |
| 09/11/1979 | CA1062352A1 Destructive mechanism for automobile tape decks, radios and the like |
| 09/04/1979 | US4166955 Radiation detector and method of operating the same |
| 09/04/1979 | US4166428 Intruder alarm |
| 08/28/1979 | US4166273 Intrusion detector system |
| 08/28/1979 | US4166264 Intrusion detection transducers |
| 08/28/1979 | CA1061458A1 Time lapse video tape recorder |
| 08/21/1979 | CA1060971A1 Intrusion detecting apparatus to signal movement of a partition |
| 08/14/1979 | US4164736 Apparatus for disabling an alarm after a predetermined operating period |
| 08/07/1979 | US4163968 Supervised loop alarm radio transmitter system |
| 07/31/1979 | US4163215 Safety lock system for controlling access to an area in response to predetermined data inputs |
| 07/25/1979 | EP0003178A1 Presence sensing system |
| 07/24/1979 | US4162448 Radio signalling systems |
| 07/17/1979 | US4161750 Video alarm systems |
| 07/17/1979 | CA1058743A1 Electrostatically charged cable transducer |
| 07/10/1979 | US4160999 Mounting arrangement for a television monitoring camera |
| 07/10/1979 | US4160998 Television-based alarm system |
| 07/10/1979 | US4160972 Alarm apparatus for movable barrier members |
| 07/10/1979 | US4160875 Security system |
| 07/03/1979 | US4160209 Resonant circuit excitation method and apparatus |
| 06/27/1979 | EP0002595A1 Transponders |
| 06/26/1979 | US4159473 Charge sensitive switch |
| 06/19/1979 | US4158832 Seismic apparatus for discrimination between track-type vehicles and wheel-type vehicles |
| 06/19/1979 | US4158434 Electronic status determining system for goods |
| 06/12/1979 | US4158197 Pendant with an alarm built in |
| 06/05/1979 | US4157542 Electrical receptacle assembly with plug removal alarm |
| 06/05/1979 | US4157540 Wireless alarm system |
| 05/22/1979 | US4156235 Apparatus for activating or deactivating an intrusion detection system from a plurality of remote locations |
| 05/15/1979 | US4155083 Composite wire and fence made therefrom useful for security purposes |
| 05/15/1979 | US4155079 Theft-proof suitcase |
| 05/15/1979 | US4155078 Single wire intrusion detector system |
| 05/15/1979 | US4155077 Apparatus for audible alerting of enclosure opening |
| 05/15/1979 | US4155066 Transducer structure |
| 05/08/1979 | CA1054251A1 Intruder detecting security system |
| 04/24/1979 | US4151521 Power tool theft alarm |
| 04/24/1979 | US4151520 Portable self-contained alarm with remote triggering capability |
| 04/24/1979 | US4151405 Ferromagnetic marker pairs for detecting objects having marker secured thereto, and method and system for activating, deactivating and using same |
| 04/24/1979 | US4151382 Switch assembly for alarm systems |
| 04/19/1979 | WO1979000196A1 Pre-intrusion detection device |
| 04/17/1979 | US4150371 Tamper indicator |
| 04/17/1979 | US4150369 Intrusion alarm system |
| 04/17/1979 | CA1052884A1 System for the detection of moving objects within a survey area by microwave diffraction |
| 04/10/1979 | US4149224 Instant savior |
| 04/10/1979 | US4149158 Security system for CATV terminal |
| 04/10/1979 | US4149157 Receiver for a HF-intrusion detection system |
| 04/10/1979 | US4149156 Window alarm employing a releasably mounted plunger switch |
| 04/03/1979 | US4148062 Television-based alarm system |
| 03/27/1979 | US4146356 Flashlamp article having internally located combustible member |
| 03/27/1979 | US4146293 Entry detection screen |