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Class Information
Number: 340/547
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Intrusion detection > Door or window movement > Specified sensor > Magnetic sensor
Description: Subject matter in which movement is detected by a device containing or responsive to, a magnet or electromagnet.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7259647 Method of using reed switch apparatus to control one or more devices Aug. 21, 2007
RE39731 Alarm switch Jul. 17, 2007
7242297 Alarm sensor Jul. 10, 2007
7232967 Door-opening sensor and refrigerator equipped therewith Jun. 19, 2007
7187280 Alarm system with thin profile Mar. 6, 2007
7187296 Miniature fault indicator Mar. 6, 2007
7173527 Pull-apart contact using magnets to complete the circuit Feb. 6, 2007
7173881 Silent morning alarm Feb. 6, 2007
7164357 Magnet seat in a warning system to enhance magnetic field Jan. 16, 2007
7151461 Magnetic contact tamper switch for security accessories Dec. 19, 2006
7142113 Method and apparatus to detect an external source Nov. 28, 2006
7132941 System for monitoring an environment Nov. 7, 2006
7123139 Wireless integrated occupancy sensor Oct. 17, 2006
7116234 Drowsiness detecting device and waking device operatively connected with the same Oct. 3, 2006
7095322 Magnetically operated door-open indicator Aug. 22, 2006
7049914 Multiple output magnetic sensor May. 23, 2006
7023308 Magnetic switch assembly Apr. 4, 2006
7019647 Telesurveillance installation and operating process thereof Mar. 28, 2006
6980117 Method and system for remotely monitoring garage door position Dec. 27, 2005
6970085 Door sensor and door equipped with such door sensor Nov. 29, 2005
6963281 Tamper resistant magnetic contact apparatus for security systems Nov. 8, 2005
6960974 Magnetoresistive smart switch Nov. 1, 2005
6940405 Portable motion detector and alarm system and method Sep. 6, 2005
6933846 Displacement sensing system Aug. 23, 2005
6927675 Cigarette lighter mounted remote car alarm Aug. 9, 2005
6906626 Burglar alarm and door chime Jun. 14, 2005
6828909 Portable motion detector and alarm system and method Dec. 7, 2004
6803845 Magnetic switch Oct. 12, 2004
6788201 Motion sensitive switch and circuitry Sep. 7, 2004
6784796 Magnetic vector field tag and seal Aug. 31, 2004
6777927 Magnetic sensor Aug. 17, 2004
6737969 Wireless security sensor systems for windows and doors May. 18, 2004
6727819 Pool guard alarm Apr. 27, 2004
6724316 Method and apparatus for detection of motion with a gravitational field detector in a security system Apr. 20, 2004
6724285 Monitor hinge Apr. 20, 2004
6587048 Magnetic sensor Jul. 1, 2003
6586926 Magnetic sensor Jul. 1, 2003
6583616 Magnetic sensor Jun. 24, 2003
6577235 Adjustable door hinge monitoring device Jun. 10, 2003
6542078 Portable motion detector and alarm system and method Apr. 1, 2003
6522259 Open crib gate alarm system Feb. 18, 2003
6522258 Garage door status light system Feb. 18, 2003
6518890 Device for indicating multiple conditions Feb. 11, 2003
6506987 Magnetic switch Jan. 14, 2003
6472993 Singular housing window or door intrusion detector using earth magnetic field sensor Oct. 29, 2002
6459373 Vehicle door handle Oct. 1, 2002
6453847 Electro-magnetically controlled pet door Sep. 24, 2002
6441735 Lock sensor detection system Aug. 27, 2002
6437697 Propane level monitor assembly Aug. 20, 2002
6433688 Magnetic sensor Aug. 13, 2002

1 2 3 4 5










 
 
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