| Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025) |
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| 09/14/1993 | US5245180 Metal coated fiber optic damage detection sensors with system |
| 09/14/1993 | US5244030 Electrically operated folding operable walls |
| 09/13/1993 | CA2091051A1 Alarm device |
| 09/09/1993 | DE4207127A1 Intrusion-alarm-activated additional locking device for entrance doors - incorporates electromagnet for release of catch which allows claw to rotate into engagement with locking cam |
| 09/08/1993 | EP0559357A1 Monitoring system |
| 09/08/1993 | EP0559110A1 Infrared-sensor with Fresnel lens |
| 09/08/1993 | EP0558579A1 Method of producing tags comprising resonant circuits which can be activated and deactivated |
| 09/08/1993 | CN1076043A Security system having mode control of sensor points |
| 09/07/1993 | US5243418 Display monitoring system for detecting and tracking an intruder in a monitor area |
| 09/07/1993 | US5243328 Electronic equipment anti-theft monitoring system |
| 09/07/1993 | US5243327 Audible alarm for motion detection using dual mode transducer |
| 09/07/1993 | US5243325 Latch gate alarm switch assembly |
| 09/02/1993 | WO1993017404A1 Security system |
| 09/02/1993 | DE4205084A1 Electromagnetic radiation receiver e.g. for antitheft security systems - consists of adjacent pairs of conductors in common planes, each pair wound into octagonal coils with equal numbers of turns and density |
| 09/01/1993 | EP0557589A1 Light beam detector for door openers using fiber optics |
| 09/01/1993 | CN2141582Y All-position cutting-off theft-proof alarm |
| 09/01/1993 | CN2141581Y Fuse type alarm for safety door |
| 09/01/1993 | CN2141206Y 电子报警防盗钱包 Electronic anti-theft alarm wallet |
| 08/31/1993 | US5241427 Message door lock apparatus |
| 08/31/1993 | US5241380 Track mounted surveillance system having multiple use conductors |
| 08/31/1993 | US5241299 Stabilized resonant tag circuit |
| 08/31/1993 | US5241298 Electrically-and-magnetically-coupled, batteryless, portable, frequency divider |
| 08/31/1993 | US5241297 Alarm device |
| 08/31/1993 | US5240220 TV camera supporting device |
| 08/26/1993 | DE4226420A1 Control of data compressed recording and playback of multiple source video signals - has microcomputer controlled compression with sequential playback to expansion unit with error correction |
| 08/25/1993 | EP0557109A1 Pyroelectric device |
| 08/25/1993 | EP0556910A1 A remote identification system comprising passive identification devices |
| 08/25/1993 | CN2141102Y Infrared burglar alarm |
| 08/25/1993 | CN2141101Y Electronic multi-purpose instrument |
| 08/25/1993 | CN2141100Y Creep-proof alarm for trucks |
| 08/24/1993 | US5239696 Linear power amplifier utilizing current feedback |
| 08/24/1993 | US5239284 Antitheft device |
| 08/24/1993 | US5239167 Checkout system |
| 08/19/1993 | WO1993016449A1 Dual channel glass break detector |
| 08/19/1993 | DE4204509A1 Electronic energy door surveillance for intruder alarm system - uses latch plate and contacts to provide alarm signal in response to abnormal contact operating sequence |
| 08/19/1993 | DE4204494A1 Burglar alarm system detecting window breakage - uses photo-coupling to provide secure signal transmission between detector and evaluation circuit on opposite sides of glass pane |
| 08/19/1993 | CA2117474A1 Dual channel glass break detector |
| 08/18/1993 | EP0556042A1 Wide field of view optical element |
| 08/18/1993 | CN2140542Y Antitheft wire cut-off alarm for window |
| 08/18/1993 | CN2140541Y Multifunctional alarm |
| 08/18/1993 | CN2140540Y Bicycle antitheft alarm |
| 08/17/1993 | US5237308 Supervisory system using visible ray or infrared ray |
| 08/17/1993 | US5237307 Non-contact tamper sensing by electronic means |
| 08/17/1993 | CA1321417C Apparatus and method for protecting the contacts of an electrical switch from current surges |
| 08/12/1993 | DE4203850A1 Detecting movement of doors, windows etc. - using e.g. infrared light source and receiver, with radiation reaching receiver when object is in set position |
| 08/11/1993 | EP0554948A1 Apparatus for remote surveillance of premises |
| 08/11/1993 | CN2140085Y Time alarm device for emergency combined photograph |
| 08/10/1993 | US5235326 Multi-mode identification system |
| 08/10/1993 | US5235325 Weight alarm device for trash containers |
| 08/05/1993 | WO1993015484A1 A device for activating or deactivating an antitheft device |
| 08/04/1993 | EP0554197A1 Surveillance device with a mobile camera |
| 08/04/1993 | EP0553082A1 Shoplifting detection system with partly screened antennas |
| 08/04/1993 | EP0435885B1 Metallic glass alloys for mechanically resonant target surveillance systems |
| 08/04/1993 | CN2139723Y Multifunctional passive infrared device for door or window |
| 08/04/1993 | CN2139722Y Theft-proof alarm device |
| 08/04/1993 | CN1075023A Multifunction alarm device |
| 08/03/1993 | US5233185 Light beam detector for door openers using fiber optics |
| 07/28/1993 | CN1074774A Alarm system for a cardholder |
| 07/27/1993 | US5231376 Tool transport container apparatus |
| 07/27/1993 | US5231375 Apparatus and method for detecting theft of electronic equipment |
| 07/22/1993 | WO1993014550A1 An arrangement in code-protected electronic apparatus |
| 07/22/1993 | WO1993014478A1 Methods and device for remote sensing of objects |
| 07/22/1993 | WO1993014477A1 An anti-theft device |
| 07/22/1993 | WO1993014474A1 Method and device for electronic identification |
| 07/22/1993 | WO1993014370A1 Method for measuring position and angle |
| 07/22/1993 | CA2128433A1 Method for measuring position and angle |
| 07/22/1993 | CA2128432A1 Method and device for electronic identification |
| 07/22/1993 | CA2128431A1 Methods and device for remote sensing of objects |
| 07/21/1993 | EP0551853A1 Bendable currency security dye pack |
| 07/21/1993 | EP0551652A1 Deactivating device for deactivating EAS dual status magnetic tags |
| 07/21/1993 | CN2138816Y Multifunction door bell |
| 07/20/1993 | US5229850 Video monitoring system including a memory for storing and transmitting a video signal immediately following the occurrence of an event |
| 07/20/1993 | US5229749 Security system for cigarette display case |
| 07/20/1993 | US5229748 Monitoring system for monitoring the window panes of an interior, for example a motor vehicle interior |
| 07/20/1993 | US5229601 Method and apparatus for surveillance of a determined space such as a portion of premises, an area of ground, or an industrial installation, for example |
| 07/15/1993 | DE4300504A1 Electronic locking system for such as radio receivers - has built in security code unit that is activated following power supply disconnection and requires code entry. |
| 07/15/1993 | DE4200419A1 Alarm securing and monitoring mobile objects - fitted with permanent magnets generating specific magnetic field |
| 07/14/1993 | EP0551183A1 Detecting and alarm system for detecting short-circuited or broken circuit |
| 07/14/1993 | EP0551175A1 Video surveillance system |
| 07/14/1993 | EP0550443A1 Security tag for compact disc storage container. |
| 07/13/1993 | US5227765 Counting and measuring apparatus for medical cloths |
| 07/13/1993 | US5227764 Electromagnetic proximity sensor |
| 07/13/1993 | US5227632 Optical radiation detector with wide field-of-view |
| 07/08/1993 | WO1993013508A1 Security system having mode control of sensor points |
| 07/08/1993 | WO1993013505A1 Security device and method of operating the device |
| 07/08/1993 | DE4200082A1 Magnetisable marking element detecting device - includes signal analyser for analysing receiver output signal, having a band pass filter and comparator |
| 07/07/1993 | EP0429561A4 Article input and removal monitoring system and method for article storage systems and weight sensor therefor |
| 07/07/1993 | CN2137803Y Indoor safety monitoring device |
| 07/07/1993 | CA2058834A1 Luggage alarm foot |
| 07/06/1993 | US5226103 Cable provided with a device for destroying the optical fibers of this cable |
| 07/06/1993 | US5225863 Remotely operated camera system with battery recharging system |
| 07/06/1993 | US5225808 Long range intruder sensor |
| 07/06/1993 | US5225807 Method and apparatus for sensitizing and desensitizing targets for electronic article surveillance systems |
| 07/06/1993 | US5225806 Security system having mode control of sensor points |
| 07/06/1993 | US5224675 Mounting apparatus |
| 07/06/1993 | US5224430 Security enclosures |
| 07/01/1993 | DE4242999A1 Eye protector and sound recorder for TV receiver - detect proximity of infrared reflector to screen, and reproduce appropriate visual warning and audible recorded message |
| 07/01/1993 | DE4142529A1 Sicherungsverfahren und -einrichtung Assurance procedures and Equipment |
| 06/30/1993 | EP0548851A1 Stabilized article surveillance responder |
| 06/30/1993 | CN2137381Y Portable passive infrered detector-alarm |