| Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025) |
|---|
| 02/28/1989 | US4809316 Method for identifying operation modes of an antitheft system |
| 02/28/1989 | US4808981 Automotive electronic communication apparatus with theft disabling, particularly car radio or similar automotive audio equipment |
| 02/28/1989 | US4808974 Door alarm |
| 02/28/1989 | US4808973 Window tape alarm interlock device |
| 02/28/1989 | CA1250637A1 Passive infrared detector |
| 02/28/1989 | CA1250634A1 Simulated targets for detection systems |
| 02/23/1989 | DE3817504A1 Square-wave generator |
| 02/23/1989 | DE3726054C1 Alarm system |
| 02/22/1989 | EP0303913A1 Intrusion detector |
| 02/22/1989 | CN2033142U Supersonic anti-stealing warning instrument |
| 02/21/1989 | US4807255 Alarm system responsive to intrusion induced phase unbalance |
| 02/21/1989 | US4807027 Station platform observation method |
| 02/21/1989 | US4806926 Antitheft device for an audio device |
| 02/21/1989 | US4806910 Arrangement for remote monitoring of the position and/or movement of a closure mechanism |
| 02/14/1989 | US4805018 Video signal processing apparatus for separating an image of a moving object from video signals |
| 02/14/1989 | US4804946 Pre-wired window pane |
| 02/14/1989 | US4804945 Door alarm with infrared and capacitive sensors |
| 02/14/1989 | US4804943 Remotely controlled briefcase alarm |
| 02/09/1989 | WO1989001214A1 Alarm locator module for picket barrier intrusion detection and location system |
| 02/09/1989 | WO1989001213A1 A security device |
| 02/09/1989 | WO1989001212A1 Sensor device for picket barrier intrusion detection and location system |
| 02/09/1989 | DE3724929A1 Break-in and anti-theft alarm |
| 02/08/1989 | CN1030989A Method and a device for determining the number of people present in a determined space |
| 02/07/1989 | US4803482 Exit control and surveillance system |
| 02/07/1989 | US4803468 Security fence with security wires fastened to posts via sensors |
| 02/07/1989 | US4802944 Method of making deactivatable tags |
| 02/07/1989 | CA1249867A1 Key-operated, exit alarm, switch cam assembly, and modification kit, and modification method for switch cam assemblies |
| 02/01/1989 | EP0301659A2 Infrared lens arrays |
| 01/31/1989 | US4801082 Security activated load control |
| 01/26/1989 | WO1989000743A1 Wire netting for electrified fences |
| 01/26/1989 | WO1989000520A1 Car radio with theft protection |
| 01/26/1989 | EP0273938A4 Article security system. |
| 01/26/1989 | DE3723903A1 Maschendrahtgeflecht fuer elektrisch ueberwachte zaeune Mesh wire mesh fences for electrically supervised by |
| 01/25/1989 | CN1030647A Identification system for stock farms |
| 01/24/1989 | US4800369 Anti-shoplifting system |
| 01/24/1989 | US4800368 Pyroelectric detector arrangement |
| 01/24/1989 | US4800366 Alarm locator module for picket barrier intrusion detection and location system |
| 01/24/1989 | US4800361 Anti-theft alarm system for motor vehicles |
| 01/24/1989 | US4800293 Infrasonic switch |
| 01/24/1989 | US4800278 Pyroelectric infrared sensor |
| 01/24/1989 | CA1249359A1 Inventory monitoring systems, devices and methods |
| 01/19/1989 | DE3722362A1 Vorrichtung fuer einen infrarot-bewegungsmelder zur variabilitaet seines erfassungswinkels Device for an infrared motion detector on the variability of its detection angle |
| 01/18/1989 | EP0299557A1 Identification system for stock farms |
| 01/18/1989 | EP0299219A1 Method and device for securing windows doors etc. against burglary |
| 01/18/1989 | CN2031132U Anti-thief alarm for tv set |
| 01/17/1989 | US4799243 Directional people counting arrangement |
| 01/17/1989 | US4799045 Method of detecting a label used in an anti-theft surveillance system |
| 01/11/1989 | EP0298944A2 Method for releasing a warning device |
| 01/11/1989 | EP0298320A1 Bracket device |
| 01/11/1989 | EP0298203A1 Electrical monitoring device for detecting stability impaining damages to pylons |
| 01/10/1989 | USRE32828 Passive infrared intrusion detection system |
| 01/10/1989 | US4797785 Circuit arrangement and resonant label, and a process for its production |
| 01/10/1989 | US4797663 Portable security monitor and time recording |
| 01/10/1989 | US4797661 Motion sensing device |
| 01/10/1989 | US4797659 Method and a unit for synchronizing burglary detectors |
| 01/10/1989 | US4797658 Article surveillance marker capable of being deactivated by relieving the retained stress therein and method and system for deactivating the marker |
| 01/10/1989 | US4797657 Portable self-contained intrusion detector for passenger aircraft |
| 01/10/1989 | US4797547 Optical fibre monitoring device using a synchronization selector to channel optical signals |
| 01/10/1989 | CA1248607A1 Canvas adapter alarm |
| 01/04/1989 | EP0297940A2 Glazing alarm |
| 01/04/1989 | CN2030350U Continuous sound type music alarm |
| 01/03/1989 | US4796039 Ballistic rated camera housing and method for forming |
| 01/03/1989 | US4796012 Perimeter surveillance system with sectional inhibition |
| 01/03/1989 | US4796010 Intrusion alarm and automatic illumination system |
| 01/03/1989 | US4795995 Method and apparatus for producing electromagnetic surveillance fields |
| 01/03/1989 | US4795908 Infrared detector |
| 01/03/1989 | US4795905 Circuit layout for an infrared room surveillance detector |
| 12/29/1988 | DE3720349A1 Alarm device |
| 12/28/1988 | EP0296766A2 Intrusion detection system |
| 12/28/1988 | CN88211394U Mutifunctional alarming device |
| 12/28/1988 | CN88211359U Infrared alarming device |
| 12/27/1988 | US4794470 Security system for protecting information |
| 12/22/1988 | DE3736884A1 Vorrichtung zur verhinderung von ladendiebstaehlen Device for prevention of ladendiebstaehlen |
| 12/21/1988 | EP0296011A1 Method and device for determining the number of persons present in a determined room |
| 12/20/1988 | US4792796 For monitoring the presence/absence of a radio frequency signal |
| 12/20/1988 | US4792790 Identification device in the form of a tag-like strip affixable to an article and method for its manufacture |
| 12/15/1988 | WO1988009979A1 Article detection and/or recognition using magnetic devices |
| 12/15/1988 | WO1988009978A1 Process and device for determining the number of persons present in a given space |
| 12/14/1988 | EP0295085A1 Article detection and/or recognition using magnetic devices |
| 12/14/1988 | EP0295028A1 Magnetic devices |
| 12/14/1988 | CN87214659U Self protection electronic warning device against thieves |
| 12/14/1988 | CN87104058A Security and guard against theft device |
| 12/13/1988 | US4791420 Radar detector/security device for automobiles |
| 12/13/1988 | US4791412 Magnetic article surveillance system and method |
| 12/13/1988 | US4791410 Alarm system |
| 12/13/1988 | US4791409 Security system for electrical appliances and other items with electrical circuitry |
| 12/13/1988 | US4790654 Spectral filter |
| 12/13/1988 | CA1246695A1 Electrical connecting of surface conductive layers |
| 12/08/1988 | DE3717645A1 Alarm signalling device, particularly for monitoring high-voltage towers |
| 12/07/1988 | EP0294275A2 Device for monitoring the soundness of security wall, metallic or non-metallic, for automatically instigating an intervention in the event of any aggression used against it |
| 12/06/1988 | US4789904 Vehicle mounted surveillance and videotaping system |
| 12/06/1988 | CA1246225A1 Checkout station to reduce retail theft |
| 12/01/1988 | WO1988009542A1 Deactivatable coded marker and magnetic article surveillance system |
| 12/01/1988 | EP0246301A4 Portable, batteryless, frequency divider consisting of inductor and diode. |
| 12/01/1988 | DE3707901C1 Power supply device for monitoring installations on high-voltage pylons |
| 11/30/1988 | EP0293222A2 Secure paper product |
| 11/30/1988 | EP0292827A1 Method of making tags with respectively a circuit forming a resonant circuit |
| 11/30/1988 | CN88200171U Miniature electronic anti-thief wallet |
| 11/29/1988 | US4788532 Personal portable alarm system |
| 11/23/1988 | EP0291827A2 Dar radio with an electronic antitheft device |