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| Number | Title | Issue Date |
| 8017405 | Gas analysis method The present invention provides a method for analyzing gases such as carbon dioxide, and includes passing a gas stream containing impurities into a gas adsorption means for a length of time at ambient or higher temperatures to adsorb the impurities therein, stopping ... | 09/13/2011 |
| 8012760 | Sensor for direct measurement of carbonate ions in seawater A system and associated methodology to directly measure the concentration of carbonate ions in seawater by ultraviolet absorbance spectroscopy. Metal ions are added to seawater and the absorbance spectra of the added ions are measured in the ultraviolet. The spectra... | 09/06/2011 |
| 8003401 | Carbon dioxide sensor and method of determining partial pressure of carbon dioxide A carbon dioxide sensor and a method of detecting carbon dioxide using the sensor are provided, the sensor includes a closed chamber having as a wall portion thereof a substantially watertight, carbon dioxide-permeable membrane, two electrodes disposed in the chambe... | 08/23/2011 |
| 7842507 | Sensor for direct measurement of carbonate ions in seawater A system and associated methodology to directly measure the concentration of carbonate ions in seawater by ultraviolet absorbance spectroscopy. Metal ions are added to seawater and the absorbance spectra of the added ions are measured in the ultraviolet. The spectra... | 11/30/2010 |
| 7622304 | Carbon dioxide sensor and method of determining partial pressure of carbon dioxide A carbon dioxide sensor and a method of detecting carbon dioxide using the sensor are provided, the sensor includes a closed chamber having as a wall portion thereof a substantially watertight, carbon dioxide-permeable membrane, two electrodes disposed in the chambe... | 11/24/2009 |
| 7452729 | Waste high-pressure fluid processing method The present invention relates to a method for processing a waste high-pressure fluid, which is yielded by bringing a high-pressure fluid into contact with a processing object in a high-pressure processing vessel to make unnecessary materials on the processing object... | 11/18/2008 |
| 7390669 | Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In ... | 06/24/2008 |
| 7347974 | Materials, method and apparatus for detection and monitoring of chemical species A method for investigating a target environment to determine whether or in what amount a chemical species may be present therein, which comprises: (a) exposing to said environment an article of manufacture comprising a multiplicity of particles in close-packed orien... | 03/25/2008 |
| 7326922 | Gas sensor with one point calibration System and method for calibrating a sensor comprises a detector capable of detecting electromagnetic radiation at least at a radiation wavelength of interest, an analyzer capable of determining concentration values in response to the detected radiation, and a calibr... | 02/05/2008 |
| 7297549 | Method of determining measurement bias in an emissions monitoring system A method of determining bias in a measurement of a constituent concentration level in a sample gas is provided. The method comprises establishing a sample gas flow from an emission stream into a sample gas line of an emissions monitoring system. The method further c... | 11/20/2007 |
| 7294512 | Solution for calibrating a chemical analyzer for alcohol, carbonate and ammonia assays A multi-analyte calibration solution having known amounts of sodium carbonate, ammonium bicarbonate, and ethyl alcohol, with pH adjusted within a range between about 7.8 and 8.4. ... | 11/13/2007 |
| 7291114 | System and method of determining an individualized drug administration protocol A system and method for determining an individualized drug dosage is provided. The system includes a metabolic rate sensing means for sensing the metabolic rate of the individual. The system also includes a computing device having a processor, a memory, an input dev... | 11/06/2007 |
| 7212977 | Managing apparatus and managing method of a semiconductor manufacturing apparatus Power consumption of electric equipment used in a semiconductor manufacturing apparatus (100) is obtained and the total amount is displayed as calories by a display means. The semiconductor manufacturing apparatus is configured so that the equipment is set up... | 05/01/2007 |
| 7193705 | Method for determining atomic isotope masses A method for determining atomic isotope masses in mass spectrometry, atomic isotope ratios being determined from molecular isotope ratios measured by means of an isotope mass spectrometer—ion correction, the determination of the atomic ratios being carried out by ... | 03/20/2007 |
| 7192782 | Method and apparatus for determining marker gas concentration in exhaled breath using an internal calibrating gas A method and an apparatus for measuring the concentration of a specific gas component of a gas mixture including another gas whose concentration is independently known using light absorption spectroscopy are provided. A method and an apparatus for assessing human ai... | 03/20/2007 |
| 7178519 | Intubation tube placement assessment device A novel connection device, and method for its use, for connecting a volume displacement detection device and a gas composition detection device in line with an intubation tube is disclosed. The connection device allows a user to combine two systems commonly employed... | 02/20/2007 |
| 7141430 | Microrespirometer and associated methods A method for measuring an evolution rate of a gas from a sample includes equilibrating a sample with an alkaline solution and a pH indicator and permitting the alkaline solution to absorb formed carbon dioxide in an enclosed headspace. From the pH indicator at equil... | 11/28/2006 |
| 7105352 | Intelligent polymerized crystalline colloidal array carbohydrate sensors The present invention is related to glucose sensors that are capable of detecting the concentration or level of glucose in a solution or fluid having either low or high ionic strength. The glucose sensors of the present invention comprise a polymerized crystalline c... | 09/12/2006 |
| 7087436 | Membrane countercurrent exchanger and membrane inlet mass spectrometer for the analysis of gas partial pressure in liquid samples A method and apparatus for the analysis of blood or other liquids by mass spectrometry to determine the partial pressures of gases and other volatile substances dissolved in the blood or other liquid in a manner independent of the solubility of the gases in the bloo... | 08/08/2006 |
| 7067323 | System and method for automated headspace analysis A system and method for nondestructive automated headspace analysis. The system includes a container conveyor that conveys a plurality of generally optically transparent sealed test containers through a pre-inspection region, an inspection region and a post-inspecti... | 06/27/2006 |
| 7067320 | Sensor for luminescense-optical determination of an analyte The invention relates to an optochemical sensor functioning in accordance with the FRET-principle and exhibiting an acceptor (chromophore or luminophore) responsive to an analyte contained in a sample medium as well as a donor (luminophore), characterized in that ac... | 06/27/2006 |
| 7055600 | In situ thermal recovery from a relatively permeable formation with controlled production rate A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a portion of the formation. The heat may be allowed to transfer from the heat sources to a selected section of th... | 06/06/2006 |
| 7037724 | Method for storing and transporting crude oil Disclosed is a method for transporting blended crude oils comprising the steps of; (a) admixing a first crude oil with a second, different crude oil to form a crude oil admixture; (b) determining a first value representing the content of unprecipitated asphaltenes i... | 05/02/2006 |
| 7033541 | Bicarbonate receptor compounds The present invention relates to compounds and more particularly to compounds which are useful for the determination of bicarbonate and the delivery of bicarbonate to a non-aqueous solution. The invention further relates to an optical sensor for the determination of... | 04/25/2006 |
| 7029920 | Method and system for monitoring combustion source emissions A method and system for determining a concentration level of NOx in an exhaust stream from a combustion source. The method comprises capturing sample gas from the exhaust stream using a sampling device. NO2 in the sample gas is converted to NO ... | 04/18/2006 |
| 7026165 | Calibration-free optical chemical sensors An apparatus and method for taking absorbance-based chemical measurements are described. In a specific embodiment, an indicator-based pCO2 (partial pressure of CO2) sensor displays sensor-to-sensor reproducibility and measurement stability. The... | 04/11/2006 |
| 7020505 | Method and apparatus for monitoring cerebral physiology A method and apparatus for predicting the outcome of head injury trauma by monitoring cerebrospinal fluid (CSF) characteristics, preferably my monitoring the pH of CSF. The apparatus includes a catheter with a wall section adapted to permit CSF to flow therein, and ... | 03/28/2006 |
| 7008567 | Essentially water-free polymerized crystalline colloidal array composites having tunable radiation diffracting properties and process for making The present invention is directed to a composite having tunable radiation diffracting properties which includes a flexible, water-free polymeric matrix and a crystalline colloidal array of particles having a lattice spacing, the array being embedded in the polymeric... | 03/07/2006 |
| 6971804 | Optic coupling device, optic sensor and communication device comprising such a coupling device The optic coupling device comprises optic emitting elements arranged in a coating material to emit a first light signal to an optic duct, and optic receiving elements separated from the emitting elements to receive a second light signal from the optic device. To imp... | 12/06/2005 |
| 6955650 | Metabolic calorimeter employing respiratory gas analysis An indirect calorimeter for measuring the metabolic rate of a subject includes a respiratory connector configured to be supported in contact with the subject so as to pass inhaled and exhaled gases as the subject breathes, a flow pathway, and a hygiene barrier posit... | 10/18/2005 |
| 6929008 | Carbon dioxide indicating apparatus, particularly, disk-like carbon dioxide indicating apparatus Carbon dioxide indicator for receiving gas containing carbon dioxide and for providing a visible indication of the presence of carbon dioxide in the gas, the indicator includes a connector for removably connecting the indicator to a source of gas containing carbon d... | 08/16/2005 |
| 6872291 | Method and device for detecting and controlling the level of biological contaminants in a coating process The presence of biological contaminants in a liquid coating composition is determined by measuring the carbon dioxide content of the atmosphere above the liquid and comparing the measured carbon dioxide level to a baseline carbon dioxide level. A biocide can be adde... | 03/29/2005 |
| 6827903 | Inert gas fusion analyzer A single pass analyzer includes multiple infrared sensors, a catalytic converter, a scrubber and a thermal conductivity cell all coupled in series to provide a single pass (i.e., one sample) analyzer which allows for fast analysis, allows for the speciation of hydro... | 12/07/2004 |
| 6811751 | Method and apparatus for determining indirectly the concentration of a specific substance in the blood Method and apparatus for determining in a person's exhalation air the concentration of a specific substance in the blood by measuring the concentration of said substance and the concentration of water vapor in the exhalation air and utilizing a known relationship be... | 11/02/2004 |
| 6780378 | Method for measuring concentrations of gases and vapors using controlled flames A method and apparatus for measuring the concentration of at least one gaseous component and/or vaporous component of a gaseous mixture in which a controlled sensor flame is introduced into the gaseous mixture and at least one narrow spectral band in the controlled ... | 08/24/2004 |
| 6780646 | Method for determining the storability of a grain or oilseed sample The rate of carbon dioxide release from a grain sample can be measured by placing the grain sample in a sealed container, and positioning a pH responsive color-change material in the container so that carbon dioxide released from the grain sample chemically reacts w... | 08/24/2004 |
| 6767746 | Method and apparatus for analyzing acid gas loading within an amine solution Method and apparatus used to calculate the hydrogen sulfide and carbon dioxide loading of both rich and lean amine solutions used to remove acidic gas components from sour or production gases in order to produce a sweet or sales gas for transmission purposes. The am... | 07/27/2004 |
| 6723565 | Pulsed-flow total organic carbon analyzer Methods and apparatus are disclosed for determination of the total concentration of organic carbon compounds in aqueous process streams utilizing a pulsed-flow technique for irradiating a water sample in a chamber (3) with UV or similar wavelength radiation. | 04/20/2004 |
| 6692970 | Automated carbon efflux system A method and apparatus are provided for measuring the gas efflux from a substrate. In particular, one or more measuring chambers receive a gas enriched air from the substrate. A respiration system sends reference air having a known gas concentration to th... | 02/17/2004 |
| 6682935 | Optical sensor An optical sensor is proposed for determining gases in gas mixtures, especially for determining one gas component in the air, having a sensitive layer exposed to the gas and having a device for detecting a change in an optical property of the sensitive la... | 01/27/2004 |
