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Class Information
Number: 422/83
Name: Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing > Analyzer, structured indicator, or manipulative laboratory device > Means for analyzing gas sample
Description: Apparatus wherein the material to be analyzed is initially in the gaseous state.










Sub-classes under this class:

Class Number Class Name Patents
422/98 Analysis based on electrical measurement 927
422/84 Breath tester 249
422/94 Combustible gas detector 381
422/93 Including means dividing sample stream into plural parallel segments having diverse treating means and the analytical result compared or combined 161
422/88 Including means for adsorbing or absorbing gas into or onto liquid or solid media 638
422/86 Including means reacting gas with color indicator 282


Patents under this class:
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Patent Number Title Of Patent Date Issued
7622304 Carbon dioxide sensor and method of determining partial pressure of carbon dioxide Nov. 24, 2009
7622080 Hydrogen gas sensitive semiconductor sensor Nov. 24, 2009
7623972 Detection of presence of chemical precursors Nov. 24, 2009
7615192 Ozone gas measurement apparatus Nov. 10, 2009
7611671 Reduction of carbon monoxide interference in gaseous analyte detectors Nov. 3, 2009
7611903 System for trapping and storing gases for subsequent chemical reduction to solids Nov. 3, 2009
7597855 Adaptive membrane structure Oct. 6, 2009
7588726 Vapor analysis apparatus and method Sep. 15, 2009
7578973 Devices for continuous sampling of airborne particles using a regenerative surface Aug. 25, 2009
7568337 Device for detecting state of thermal degradation of exhaust purifying catalyst Aug. 4, 2009
7569395 Method and apparatus for measuring oxygen concentration Aug. 4, 2009
7564558 Gas cell Jul. 21, 2009
7565273 Determination of the age, identification and sealing of a product containing volatile components Jul. 21, 2009
7562555 Water-repellent filter, a method of manufacturing a water-repellent filter member, and gas sensor Jul. 21, 2009
7560070 Cantilever sensors and transducers Jul. 14, 2009
7559234 Real-time combustion control and diagnostics sensor-pressure oscillation monitor Jul. 14, 2009
7556775 Microelectro-mechanical chemical sensor Jul. 7, 2009
7553458 Alcohol sensor using the work function measurement principle Jun. 30, 2009
7537737 Installation structure for gas sensor May. 26, 2009
7531137 Substance detection system May. 12, 2009
7531136 Chemical sensor May. 12, 2009
7527981 Bioweapon-detecting fibrous-network products and methods for making same May. 5, 2009
7524460 System and method of molecule counting using fluctuation enhanced sensors Apr. 28, 2009
7526500 Perfume information processing device, perfume information processing system, and perfume conversion table generating method Apr. 28, 2009
7514269 Precision adaptable chemical spectrometer Apr. 7, 2009
7511268 Ion mobility spectrometer and its method of operation Mar. 31, 2009
7501091 Sensors with improved properties Mar. 10, 2009
7493793 Breath test simulator Feb. 24, 2009
7491548 Method and device for collecting and transferring biohazard samples Feb. 17, 2009
7487662 Volatile organic compound sensor system Feb. 10, 2009
7481975 Hydrogen peroxide indicator and method Jan. 27, 2009
7476852 Ionization-based detection Jan. 13, 2009
7473361 Diffusion-based molecular separation in structured microfluidic devices Jan. 6, 2009
7465426 System for degassing muds and for analysing the gases contained in the muds Dec. 16, 2008
7465425 Sensor and method for detecting analytes in fluids Dec. 16, 2008
7462154 Sensor for measuring carbon dioxide in respiratory gas Dec. 9, 2008
7454988 Method for fluid sampling using electrically controlled droplets Nov. 25, 2008
7454945 Mercury monitoring system and calibration Nov. 25, 2008
7443553 Holographic sensors and their production Oct. 28, 2008
7442340 Chemical agent monitoring system Oct. 28, 2008
7442555 Ammonia gas sensor method and device Oct. 28, 2008
7429358 Method and apparatus for measuring gas sorption and desorption properties of materials Sep. 30, 2008
7425452 Pump-and-probe method for estimating strength of forming photochemical ozone and apparatus therefor Sep. 16, 2008
7422723 Alcohol breath test device Sep. 9, 2008
7419635 Pd/V.sub.2O.sub.5 device for colorimetric H.sub.2 detection Sep. 2, 2008
7419830 Plural reaction chamber catalytic testing device and method for its use in catalyst testing Sep. 2, 2008
7419636 Vapor sensing instruments for ultra trace chemical detection Sep. 2, 2008
7416699 Carbon nanotube devices Aug. 26, 2008
7416902 Method and apparatus for airborne particle sorting Aug. 26, 2008
7416703 Polymer based lanthanide luminescent sensors for the detection of organophosphorus compounds Aug. 26, 2008

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