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Class Information
Number: 340/632
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Fluent material > Gas
Description: Subject matter wherein the fluent material is a gas.










Sub-classes under this class:

Class Number Class Name Patents
340/633 Catalytic detector 68
340/634 Semiconductor detector 127


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8710982 Methods and systems for sending messages regarding an emergency that occurred at a facility Apr. 29, 2014
8674842 Responsive units Mar. 18, 2014
8669878 Carbon monoxide activated garage door opening system and associated method Mar. 11, 2014
8653980 Alarm for detecting radiation and/or air pollutants Feb. 18, 2014
8653981 Safety device for underwater diving Feb. 18, 2014
8653984 Integration of LED lighting control with emergency notification systems Feb. 18, 2014
8648731 Gas concentration monitor Feb. 11, 2014
8629781 Efficiency determination for a selective-catalytic-reduction catalyst Jan. 14, 2014
8629780 Method of detecting and localizing a fire based on a time difference and air speeds of monitored air in pipe conduits Jan. 14, 2014
8626435 GPS filter algorithm Jan. 7, 2014
8618942 Extended smoke alarm system Dec. 31, 2013
8610588 Detection of CO.sub.2 leakage in a container Dec. 17, 2013
8604935 Safety sensor device Dec. 10, 2013
8599028 Method, apparatus, and systems for remotely monitoring the location and usage history of radioactive materials stored with a shielded container or overpack Dec. 3, 2013
8587443 Gas level display controller, gas level display device, and gas level display control method Nov. 19, 2013
8552874 Security system for the vent stack of a structure Oct. 8, 2013
8542107 Vapor alarm in flotation fob Sep. 24, 2013
8534258 Generator and carbon monoxide detector Sep. 17, 2013
8537020 Visual indicator of gas sensor impairment Sep. 17, 2013
8525666 Handwashing compliance detection system Sep. 3, 2013
8493223 Safety monitoring system Jul. 23, 2013
8466787 Service method of gas appliances Jun. 18, 2013
8466799 Apparatus for detecting carbon dioxide concentration in unsaturated zone, and carbon dioxide concentration monitoring method Jun. 18, 2013
8451120 System for relative positioning of access points in a real time locating system May. 28, 2013
8446274 Lone worker gas safety alarm system and method May. 21, 2013
8441359 Fire distinguishing device May. 14, 2013
8416091 Sniffing probe Apr. 9, 2013
8400317 System for providing real time locating and gas exposure monitoring Mar. 19, 2013
8395501 Dynamic alarm sensitivity adjustment and auto-calibrating smoke detection for reduced resource microprocessors Mar. 12, 2013
8395515 Hand hygiene compliance monitoring Mar. 12, 2013
8381689 Method for examining water heater safety Feb. 26, 2013
8375913 Vehicle having remote start and carbon monoxide detection Feb. 19, 2013
8373568 Detector system and method to detect or determine a specific gas within a gas mixture Feb. 12, 2013
8354935 Method for hushing a CO detector through power-on reset Jan. 15, 2013
8330605 System for providing real time locating and gas exposure monitoring Dec. 11, 2012
8314712 Bulk grain storage spoilage detection apparatus Nov. 20, 2012
8289179 Vibratory flow meter and method for correcting for entrained gas in a flow material Oct. 16, 2012
8269640 Odor-generating alarm apparatus Sep. 18, 2012
8264360 Fluid flow indicator with automatic alarm timer for low pressure/low flow applications Sep. 11, 2012
8258969 Extended smoke alarm system Sep. 4, 2012
8248253 Fire detector incorporating a gas sensor Aug. 21, 2012
8242921 Multifunctional portable electronic device and method for using the same Aug. 14, 2012
8237576 Manhole security system Aug. 7, 2012
8237575 Method, apparatus, and systems for remotely monitoring the location and usage history of radioactive materials stored with a shielded container or overpack Aug. 7, 2012
8232884 Carbon monoxide and smoke detectors having distinct alarm indications and a test button that indicates improper operation Jul. 31, 2012
8203118 Ion-trap mass spectrometer driven by a monolithic photodiode array Jun. 19, 2012
8203458 Safety helmet with gas-measuring device Jun. 19, 2012
8199027 Systems and methods for utility meter reading Jun. 12, 2012
8176936 Fluid cutoff device and gas meter with the fluid cutoff device May. 15, 2012
8159359 Function check for a gas-alarm annunciator Apr. 17, 2012

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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