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| Number | Title | Issue Date |
| 8146404 | Chemical detection system and method The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a... | 04/03/2012 |
| 8146403 | Gas sensor with smart pellistor A gas sensor includes a gas responsive pellistor and associated information specific to that pellistor. The information can include environmental compensation information, such as temperature or humidity compensation information or other manufacturing information, a... | 04/03/2012 |
| 8117894 | Gas sensor A sensor system issues measurement commands at a predetermined regular rate. If a measurement indicates that a gas of interest is present, then the sensor system is signaled to wake-up thereby pulsing a heater for the sensor element that improves the accuracy of mea... | 02/21/2012 |
| 8113034 | Gas sensor with piping for the introduction of inspection gas An apparatus includes a gas sensor configured to detect a specific gas which is a subject for detection, and inspection gas introduction piping configured to lead an inspection gas to the gas sensor, wherein at least a portion of the inspection gas introduction pipi... | 02/14/2012 |
| 8020426 | Gas sorption tester for rapid screening of multiple samples An apparatus determines gas sorption properties of a large number of material samples simultaneously. The apparatus includes a switchable manifold of low-volume conduits and an array of sensors, where each low-volume conduit fluidly couples a single sample of gas-so... | 09/20/2011 |
| 7980116 | Hydrogen gas sensor The hydrogen gas sensor is a catalytic combustion hydrogen gas sensor with a detection element 1, and is characterized by comprising a measuring circuit configured to selectively provide a normal voltage mode for applying a normal voltage to the detection ele... | 07/19/2011 |
| 7963144 | Gas analyzing system, lithographic apparatus and method of improving a sensitivity of a gas analyzing system A gas analyzing system is disclosed, the system including a gas analyzer and a reduced pressure chamber in which interior the gas analyzer is arranged, the reduced pressure chamber having an inlet configuration for a gas mixture inflow and an outlet configuration fo... | 06/21/2011 |
| 7856863 | Breath sampling device A hollow container defining a sample chamber is formed of at least two parts which fit together and have apertures therein. One of the parts is displaceable relative to the other part between a first relative disposition of the parts in which the apertures are open ... | 12/28/2010 |
| 7827847 | Gas sensor This gas sensor is provided with: a detection element that measures a gas concentration of a detection target gas contained in an examination gas; a substrate having a heating element; and a supporting member that is fixed to the substrate, protrudes from the heatin... | 11/09/2010 |
| 7823438 | Fluid detector A device is disclosed for sensing a fluid, such as in a ventilation duct. In at least one embodiment, the device includes a sensing element, a housing accommodating the sensing element, and a supply duct and a discharge duct, which ducts at one end commucicate with ... | 11/02/2010 |
| 7818993 | High-performance flexible hydrogen sensors Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modificatio... | 10/26/2010 |
| 7779668 | Detectable refrigerant compositions and uses thereof Disclosed herein are detectable refrigerant compositions, comprising from about 0.001 to about 5 weight percent tracer compositions, which are useful to identify leaking in a vapor compression refrigeration and/or air conditioning system. The presence of the tracers... | 08/24/2010 |
| 7752884 | Gas analysis system and method A method of analyzing a gas specimen mixture includes measuring the concentrations of inert components in the gas specimen mixture and the pressure and temperature of the gas specimen mixture. A number of sample gas mixtures are generated with varying percentages of... | 07/13/2010 |
| 7752885 | Gas analysis system and method A gas specimen mixture analysis system includes at least one sensor for measuring the concentrations of inert components in the gas specimen mixture, a pressure sensor for measuring the pressure of the gas specimen mixture, and a temperature sensor for measuring the... | 07/13/2010 |
| 7730765 | Oxygen depletion sensor In certain embodiments, an apparatus includes an oxygen depletion sensor (ODS) includes a thermocouple, a first nozzle configured to direct heat from combustion of a first gas, liquid, or combination thereof to the thermocouple, a second nozzle configured to direct ... | 06/08/2010 |
| 7726175 | Embedded piezoelectric microcantilever sensors An apparatus and method for sensing chemical and/or biological analytes includes a deflectable arm of a microcantilever at least partially embedded within a sensing element. A gaseous or liquid medium which may include the analyte being detected is introduced to the... | 06/01/2010 |
| 7716965 | Electrochemical sensor having suspended element counter electrode and deflection method for current sensing An electrochemical suspended element-based sensor system includes a solution cell for holding an electrolyte comprising solution including at least one electrochemically reducible or oxidizable species. A working electrode (WE), reference electrode (RE) and a counte... | 05/18/2010 |
| 7694547 | Robust high temperature composite and CO sensor made from such composite Described herein is a composite exhibiting a change in electrical resistance proportional to the concentration of a reducing gas present in a gas mixture, detector and sensor devices comprising the composite, a method for making the composite and for making devices ... | 04/13/2010 |
| 7654128 | Gas analyzing apparatus and method A gas analyzing apparatus for analyzing gas composition in a multi-gas stream is disclosed. The gas analyzing apparatus includes a plurality of sensors adapted to sense a characteristic of the gases and a microprocessor connected to the plurality of sensors and adap... | 02/02/2010 |
| 7650776 | Substrate processing apparatus A substrate processing apparatus of the present invention dilutes a sample gas by mixing the sample gas with nitrogen gas and measures the concentration of IPA gas contained in the diluted sample gas in a concentration measuring part. Then, the substrate processing ... | 01/26/2010 |
| 7624617 | Gas analyzing system, lithographic apparatus and method of improving a sensitivity of a gas analyzing system A gas analyzing system is disclosed, the system including a gas analyzer and a reduced pressure chamber in which interior the gas analyzer is arranged, the reduced pressure chamber having an inlet configuration for a gas mixture inflow and an outlet configuration fo... | 12/01/2009 |
| 7581427 | Workspace analyte sensing system and method using a fan to move samples from the workspace to the sensor A system and method for sensing and reporting atmospheric analyte levels in a workspace. The system includes (i) a remotely located gas analyte sensor, (ii) a tube attached to the sensor and defining a lumen through which the sensor is placed in fluid communication ... | 09/01/2009 |
| 7581428 | Sensor system and method An oxygen analyzer system includes first and second internally calibrated sensors each for detecting oxygen levels, and a processing subsystem responsive to the sensors. The processor is configured to calibrate the first sensor while the second sensor detects oxygen... | 09/01/2009 |
| 7568375 | Gas sensor, gas sensor system, and controlling method thereof A gas sensor disposed on a wall of a gas passage, the gas sensor including: a gas detector detecting a target gas contained in the gas flowing in the gas passage; a detector which houses therein the gas detector and has a gas chamber into which the gas is introduced... | 08/04/2009 |
| 7565826 | Gas sensor A gas sensor is disclosed as having a gas sensor element, supported with a cylindrical housing, which is covered with an atmosphere-side cover fixedly secured to the cylindrical housing. The atmosphere-side cover fixedly supports a seal member having a ventilation b... | 07/28/2009 |
| 7562555 | Water-repellent filter, a method of manufacturing a water-repellent filter member, and gas sensor A water-repellent filter member formed from a resin sheet of a porous, fibrous structure having air permeability and water repellency; a waterproof instrument and gas sensor having air permeability; and a method of manufacturing the same. A water-repellent filter me... | 07/21/2009 |
| 7559224 | Sensor A sensor comprising a sensor element, a metallic housing holding therewithin the sensor element, an inner tubular member fixed to an axially rearward end of the metallic housing, and an outer tubular member radially surrounding the inner tubular member and having a ... | 07/14/2009 |
| 7549316 | Integrated sample cell and filter and system using same Sidestream gas sampling assembly that does not substantially degrade the waveform of expired gases. The gas sampling assembly includes a sample cell portion integrated with a filter portion for separating undesired liquid condensate from respiratory gases to be moni... | 06/23/2009 |
| 7523641 | Method to measure exhaust-gas components A method to measure exhaust-gas components are determined by exposing a surface of a part to exhaust gas, cleansing the surface exposed to the exhaust gas with a solvent, and measuring the pH of the solvent obtained in the cleansing process. Alternatively, the elect... | 04/28/2009 |
| 7497108 | Gas monitor testing apparatus, method, and system Method, apparatus, and system are utilized for testing the performance of a gas monitor against predetermined monitor characteristics to determine if performance of the gas monitor is validated in a manner whereby testing gas is directly delivered to the gas sensor.... | 03/03/2009 |
| 7497107 | Gas sensing material and gas inspecting method A gas sensing material includes a nonphotosensitive organic silver salt. A gas inspecting method includes adhering a gas sensing material to a surface of an inspection object, wherein the gas sensing material includes a nonphotosensitive organic silver salt; and hea... | 03/03/2009 |
| 7487662 | Volatile organic compound sensor system Generally, this invention relates to the development of field monitoring methodology for new substances and sensing chemical warfare agents (CWAs) and terrorist substances. It also relates to a portable test kit which may be utilized to measure concentrations of hal... | 02/10/2009 |
| 7467538 | Gas sensor and method for manufacturing the same A gas sensor and method of producing the same, the gas sensor including a sensor element extending along a longitudinal axis of the gas sensor; a metal shell surrounding the sensor element; and a protector fixed on a front portion of the metal shell and covering a f... | 12/23/2008 |
| 7434447 | Oxygen depletion sensor In certain embodiments, an apparatus includes an oxygen depletion sensor (ODS) includes a thermocouple, a first nozzle configured to direct heat from combustion of a first gas, liquid, or combination thereof to the thermocouple, a second nozzle configured to direct ... | 10/14/2008 |
| 7430904 | Capacitive humidity sensor and method of manufacturing the same A capacitive humidity sensor includes a semiconductor substrate, a protective layer and a humidity sensitive section including a pair of comb electrodes and a humidity sensitive layer having a dielectric constant, which changes in accordance with humidity. The comb ... | 10/07/2008 |
| 7430893 | Systems and methods for detecting contaminants The present invention relates to a system and method for sampling a gas flow to measure one or more contaminants within a semiconductor processing tool. The system includes a portable unit containing one or more dry traps, Tenax traps and, if desired, wet impingers.... | 10/07/2008 |
| 7429358 | Method and apparatus for measuring gas sorption and desorption properties of materials The invention relates to a method and an apparatus (herein referred to as a “gas sorption/desorption analyzer”) for measuring the gas sorption properties of substances (for example hydrogen sorption by metal alloys). Measurements include: Pressure Composition Te... | 09/30/2008 |
| 7426848 | Gas composition sensing using carbon nanotube arrays A method and system for estimating one, two or more unknown components in a gas. A first array of spaced apart carbon nanotubes (“CNTs”) is connected to a variable pulse voltage source at a first end of at least one of the CNTs. A second end of the at least one ... | 09/23/2008 |
| 7426851 | Gas sensor unit and method of forming the same A gas sensor unit includes a conductive polymer and an absorbent for absorbing gas molecules. The conductive polymer is polyaniline (PAN) and the absorbent is polyurethane (PU). The content of the conductive polymer is 25-55 wt % and the content of the absorbent is ... | 09/23/2008 |
| 7426849 | Gas sensor for detecting combustible gases A gas sensor (1) has a pressure-tight sensor housing (4). The sensor housing (4) has a metal plate (5) at its lower end and the metal plate (5) has breakthroughs (6, 7, 8). Metal pins (9, 10, 11) electrically contact ... | 09/23/2008 |
