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Class Information
Number: 338/34
Name: Electrical resistors > Resistance value responsive to a condition > Gas, vapor, or moisture absorbing or collecting
Description: Subject matter including material or structure which readily absorbs or collects or facilitates the absorption or collection of fluent material such as liquids, gases, vapors, or humidity to which the resistor may be exposed, and usually which relinquishes all or part of the fluent material so absorbed or collected upon reduction in the intensity or termination of the exposure thereto, the material so collected or absorbed usually providing the electrical resistance, the value of the resistance depending on the amount of material absorbed.










Sub-classes under this class:

Class Number Class Name Patents
338/35 Humidity 145


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

Patent Number Title Of Patent Date Issued
7936275 Hand cleanliness May. 3, 2011
7741950 Humidity sensor and a method for manufacturing the same Jun. 22, 2010
7719404 Temperature detector/indicator May. 18, 2010
7573008 PTC element Aug. 11, 2009
7547953 Porous gallium oxide films and methods for making and patterning the same Jun. 16, 2009
7528695 Method to manipulate selectivity of a metal oxide sensor May. 5, 2009
7471185 Aligned particle based sensor elements Dec. 30, 2008
7342479 Sensor device utilizing carbon nanotubes Mar. 11, 2008
7268662 Passive SAW-based hydrogen sensor and system Sep. 11, 2007
7236083 Resistance type oxygen sensor and oxygen sensor device using it and air/fuel ratio control system Jun. 26, 2007
7233034 Hydrogen permeable protective coating for a catalytic surface Jun. 19, 2007
7138901 Temperature measuring device and system and method incorporating the same Nov. 21, 2006
7113069 Aligned particle based sensor elements Sep. 26, 2006
6993955 Gas sensors Feb. 7, 2006
6930586 Carbon monoxide detector Aug. 16, 2005
6885279 Carbon monoxide detector Apr. 26, 2005
6861939 Arrangement of a heating layer for a high-temperature gas sensor Mar. 1, 2005
6832507 System for detecting the presence of moisture Dec. 21, 2004
6812821 Humidity sensor Nov. 2, 2004
6807842 Molecular recognition sensor system Oct. 26, 2004
6696964 Device for monitoring the filling of a bag Feb. 24, 2004
6691554 Nanocrystalline films for gas-reactive applications Feb. 17, 2004
6637256 Gas sensor and manufacturing method for the same Oct. 28, 2003
6565812 Gas sensor and method for producing it May. 20, 2003
6513364 Hydrogen sensor Feb. 4, 2003
6462643 PTC thermistor element and method for producing the same Oct. 8, 2002
6450007 Robust single-chip hydrogen sensor Sep. 17, 2002
6435005 Heater patterns for planar gas sensors Aug. 20, 2002
6408680 Sensor and method for the manufacture Jun. 25, 2002
6347543 Measuring sensor and method for its fabrication Feb. 19, 2002
6336354 Gas concentration measuring apparatus compensating for error component of output signal Jan. 8, 2002
6326229 Process for manufacturing integrated semiconductor devices comprising a chemoresistive gas microsensor Dec. 4, 2001
6325979 Device for gas-sensoring electrodes Dec. 4, 2001
6313728 Stabilized polysilicon resistor and a method of manufacturing it Nov. 6, 2001
6266997 Thermal management of a sensor Jul. 31, 2001
6263723 Multilayered gas sensor Jul. 24, 2001
6223583 Sensor element seal for a detector May. 1, 2001
6161421 Integrated ethanol gas sensor and fabrication method thereof Dec. 19, 2000
6155099 Apparatus for measuring quantity of hydrogen Dec. 5, 2000
6114943 Resistive hydrogen sensing element Sep. 5, 2000
6114658 Device for the encapsulated reception of a material Sep. 5, 2000
6101865 Gas sensor Aug. 15, 2000
6087924 Gas sensors and methods of manufacturing the same Jul. 11, 2000
6070450 Multilayered gas sensor Jun. 6, 2000
6055847 Measuring sensor having metal jacket lead and externally mounted threaded connector May. 2, 2000
6033630 Method and sensor for detecting volatile enantiomeric substances in gases Mar. 7, 2000
6032514 Gas measuring sensor Mar. 7, 2000
6028331 Integrated semiconductor devices comprising a chemoresistive gas microsensor Feb. 22, 2000
5972296 Oxygen sensors made of alkaline-earth-doped lanthanum ferrites and method of use thereof Oct. 26, 1999
5968673 Solid electrolyte thin film and method for producing the same Oct. 19, 1999

1 2 3 4 5 6 7 8 9










 
 
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