Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8168121 | Portable gas monitor A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communication wirelessly with one another. The control unit and/or measuring unit can includes a heating arrangem... | 05/01/2012 |
| 8163242 | Portable gas monitor A portable monitor used to measure landfill gas and landfill well parameters. The portable monitor includes a control unit and a measuring unit that can communication wirelessly with one another. The control unit and/or measuring unit can includes a heating arrangem... | 04/24/2012 |
| 8142724 | Hydrogen sensor mounting structure for fuel cell vehicle A hydrogen sensor mounting structure applicable to a fuel cell vehicle that includes a fuel cell system installed under a floor panel, and a hydrogen sensor located above the fuel cell system is provided. The floor panel includes a floor tunnel portion protruding in... | 03/27/2012 |
| 8128874 | Pressurized detectors substance analyzer A method to measure the concentration of a constituent element in a gas sample contained in an analyzer. A sample cell of a detector has an inlet and an outlet. The outlet of the sample cell is sealed. A predetermined mass of a gas sample is received through the inl... | 03/06/2012 |
| 8128873 | Gas analyzer cassette system A highly sensitive fluid composition analyzer where a fluid may be placed in contact with a very small area on a material sensitized to change color in the presence of a specific type of compound, to be impinged with light. The light reflected, transmitted and/or sc... | 03/06/2012 |
| 8080206 | Multicomponent analysis of volatile organic compositions in vapor samples Amounts of volatile organic compositions can be evaluated from vapor samples based on the time dependent response of a fuel cell contacted with the vapor sample at its anode. The time response of the fuel cell signal, e.g., voltage or current, is de-convoluted using... | 12/20/2011 |
| 8075842 | Analytical chemical sampling system with sparge vessel A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the spa... | 12/13/2011 |
| 8062596 | Apparatus for detecting nano particle having nano-gap electrode The present invention relates to a nanoparticle sensor which is capable to identify an existence/nonexistence, a concentration, a size distribution and a component of the nanoparticles using an electrode pair having a separated distance of a nano-gap, in which the n... | 11/22/2011 |
| 8038948 | Gas sample analysis system A gas analyzer system for analyzing samples of compressed or ambient gas such as breathing air within a scuba tank, SCBA or ambient air within an industrial plant and informing the user as to the results of the sample's gas purity without the gas sample having to be... | 10/18/2011 |
| 8021616 | Gas sensor A gas sensor including: a gas detection element; a metal shell extending in an axial direction; and a metal cylinder extending in an axial direction, wherein a leading end portion of the metal cylinder surrounds a base end portion of the metal shell and is fixed to ... | 09/20/2011 |
| 8017081 | System and method for measuring effective temperature inside a sealed container A system and method of measuring the effective temperature inside a sealed container having a headspace is provided. A liquid solvent is added to the container, and a solid compound is added to the liquid solvent to create a saturated solution. Vapor of the saturate... | 09/13/2011 |
| 7998415 | Functionalized particles for composite sensors A chemical sensor having a transducer element and a layer of composite material including a polymer matrix and a solid particulate filler disposed in the polymer matrix provides chemical sensors exhibiting improved properties. In particular, the device allows polyme... | 08/16/2011 |
| 7998416 | Functionalized particles for composite sensors A chemical sensor having a transducer element and a layer of composite material including a polymer matrix and a solid particulate filler disposed in the polymer matrix provides chemical sensors exhibiting improved properties. In particular, the device allows polyme... | 08/16/2011 |
| 7993587 | Humidity control system for the sensing cell of an analyte permeation testing instrument A humidity control system for an analyte permeation testing instrument. The system includes (i) an analyte permeation testing instrument, (ii) a sensor for sensing a target analyte, (iii) a humidity control chamber, and (iv) a selectively permeable membrane permeabl... | 08/09/2011 |
| 7981364 | Gas detection method and system There is disclosed a method of operating a colorimetric gas detector system that comprises a substrate (1) bearing a material (12) that can react with a target gas to produce a change in the wavelength of radiation absorbed or transmitted by the materi... | 07/19/2011 |
| 7968055 | Device and method for continuous measurement of concentrations of tars in a gas flow The measurement is conducted by means of thermogravimetric scales (10) bearing at one end of the beam (20) a catalyst body (30) for catalysing a coking reaction of the tars present in the gas state. Precautions are taken in order to ensure homog... | 06/28/2011 |
| 7968054 | Nanostructure sensing and transmission of gas data A system for receiving, analyzing and communicating results of sensing chemical and/or physical parameter values, using wireless transmission of the data. Presence or absence of one or more of a group of selected chemicals in a gas or vapor is determined, using suit... | 06/28/2011 |
| 7955561 | Colloidal particles used in sensing array Chemical sensors for detecting analytes in fluids comprising a plurality of alternating nonconductive regions (comprising a nonconductive material) and conductive regions (comprising a conductive material). In preferred embodiments, the conducting region comprises a... | 06/07/2011 |
| H2256 | 3-hydroxy-3-methylhexanoic acid and 3-methyl-2-hexanoic acid detection as identifiers to monitor human presence Various embodiments are described relating to devices and methods for detecting local human presence by olfactory reception of volatile organic compound (VOC) molecules dispersed in air. Such devices include a chamber inlet, a trap, a sensor and a communicator. The ... | 06/07/2011 |
| 7919046 | Method for grafting molecules of interest on inorganic surfaces, resulting surfaces and uses thereof The invention concerns a method for grafting molecules of interest on a silicon substrate via a spacer compound, said grafting including at least one click chemistry reaction to the supports thus obtained as well as their uses in nanotechnologies and nanobiotechnolo... | 04/05/2011 |
| 7906073 | Analyzers and methods for analyzing analytes Analyzers are described that contain a detector for detecting a signal from an analyte; a heater for heating a fluid; a fluid supplier for supplying the fluid heated by the heater to the detector; and a controller for controlling the detector, the heater, and the fl... | 03/15/2011 |
| 7901632 | Ultrasensitive olfactory system fabrication with doped aerogels An array of sensor elements is formed by the incorporation of sensing materials into porous structures, creating sensing systems with extremely large surface areas with sensing molecules attached to mimic the large number of cilia of an olfactory system. In each sen... | 03/08/2011 |
| 7897110 | System and method for detecting at least one contamination species in a lithographic apparatus A system for detecting at least one contamination species in an interior space of a lithographic apparatus, including: at least one monitoring surface configured to be in contact with the interior space, a thermal controller configured to control the temperature of ... | 03/01/2011 |
| 7875244 | Gas sensor with at least one catalytic measuring element A gas sensor has shock resistance and temperature resistance attributes. The gas sensor includes at least one catalytic measuring element (3), which is arranged in a sensor housing (1) forming a combustion chamber (2). The sensor housing (1 | 01/25/2011 |
| 7833481 | Fully integrated portable screening system A fully integrated portable screening system includes a main housing and a contact pad. The contact pad is removably positioned in the main housing and covered by at least one sample sheet. The contact pad is preferably constituted by a cylindrical baton which carri... | 11/16/2010 |
| 7811520 | Integrated parafoil threat agent sensor system and methods A method for collecting and sensing a column of air in near real-time to detect one or more agents dispersed within the air column is described. The method includes passing the column of air through a port in a parafoil, the parafoil configured with a flow-through s... | 10/12/2010 |
| 7799276 | Functionalized particles for composite sensors A chemical sensor having a transducer element and a layer of composite material including a polymer matrix and a solid particulate filler disposed in the polymer matrix provides chemical sensors exhibiting improved properties. In particular, the device allows polyme... | 09/21/2010 |
| 7749446 | Optimized gas cell A gas cell used in analytical instrumentation directs the flow of the sample gas to the center of the cell, allowing the outlets to be place on the ends, very near the windows and or mirrors of the cell. This reduces contamination by moving the inlet as far from the... | 07/06/2010 |
| 7658885 | Micropump, micropump unit including the micropump, sample processing chip for use with the unit, and sheet connector for use with the unit The present invention relates to a device which is to be utilized at the time of observation of a mixed state or a chemically-combined state of a mixture attained by mixing together trace amounts of gases or trace amounts of liquids or mixing a trace amount of a gas... | 02/09/2010 |
| 7655186 | Gas generation for sensor calibration Embodiments of the present invention relate a gas sensor comprising a gas detector and a hydrocarbon gas generating device, wherein the hydrocarbon gas generating device is positioned to provide an amount of hydrocarbon gas to the gas detector for testing. The hydro... | 02/02/2010 |
| 7611671 | Reduction of carbon monoxide interference in gaseous analyte detectors Highly sensitive devices for detecting nitric oxide and/or other gaseous analytes in gaseous samples are improved by the incorporation of a carbon monoxide scavenger in the interior of the device or in the device packaging. The release of carbon monoxide within the ... | 11/03/2009 |
| 7588726 | Vapor analysis apparatus and method A vapor analysis system comprising a vapor analyzer capable of collecting and analyzing a vapor sample for detection of a compound that may be contained within the vapor sample. A controller is coupled to the vapor analyzer. The controller is programmed to produce a... | 09/15/2009 |
| 7578973 | Devices for continuous sampling of airborne particles using a regenerative surface Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concen... | 08/25/2009 |
| 7531137 | Substance detection system A substance detection system having an electronic nose and classifier. The system may extract feature from the electronic signals representing the smells from the electronic nose sensing an unknown substance. The features may be formatted as smellprints that are syn... | 05/12/2009 |
| 7524460 | System and method of molecule counting using fluctuation enhanced sensors A System and Method of Molecule Counting Using Fluctuation Enhanced Sensors includes processes for improved chemical analyte detection and quantification through the measurement and generation of an amplitude density histogram of the measured time series of frequenc... | 04/28/2009 |
| 7443553 | Holographic sensors and their production An array of discrete sensors disposed on a substrate, each sensor comprising a holographic support medium and a hologram disposed throughout the volume of the medium, whereby interaction with an analyte results in a variation of a property of the medium. ... | 10/28/2008 |
| 7442340 | Chemical agent monitoring system A method and apparatus for sampling for the chemical warfare agent VX, where it is advantageous for the VX to be converted to its G-analog to facilitate aspirator induced movement of the sample through a sample line, to a sampling tube or to sample detection apparat... | 10/28/2008 |
| 7442555 | Ammonia gas sensor method and device A mixed potential sensor device and methods for measuring total ammonia (NH3) concentration in a gas is provided. The gas is first partitioned into two streams directed into two sensing chambers. Each gas stream is conditioned by a specific catalyst syste... | 10/28/2008 |
| 7434386 | System for monitoring exhaust gas concentrations A system is provided for monitoring exhaust gas concentrations in an exhaust stream from an engine. The system may include the exhaust system configured to carry an exhaust stream generated by the engine. The system may further include at least one sensor in communi... | 10/14/2008 |
| 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 |
