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| Number | Title | Issue Date |
| 7939336 | Compositions and methods using substances containing carbon Methods of characterizing and producing compositions with negative δ13C values are provided. Aspects of the invention include characterizing source materials and process products. Aspects of the invention also include compositions that contain carbon wit... | 05/10/2011 |
| 7927884 | Systems and methods for determining carbon credits A method for determining the phytolithic organic carbon yield of a plant type at a location or region comprising: a) taking a sample of a plant type growing in the location or region; b) quantifying phytolithic organic carbon in the sample; c) quantifying a total bi... | 04/19/2011 |
| 7416699 | Carbon nanotube devices Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube is adapted to pass current between two conductive elements. In one implementation, each conductive element incl... | 08/26/2008 |
| 7357015 | Gas concentration sensor, hydrogen purification unit using this and fuel cell system In order to provide a step capable of reliably detecting a CO concentration in a reformed gas at low cost and a hydrogen purifier capable of fully exerting a function of a CO purifying catalyst, a gas concentration detector comprising a reaction chamber which has a ... | 04/15/2008 |
| 7337616 | System for sampling cryogenic liquids, and air separation unit provided with at least one such system A system for sampling cryogenic liquids, and an air separation unit provided with at least one such system. The cryogenic liquid is introduced into a vaporizer, through heat exchange with the compressed air. The liquid passes through the vaporizer generally downward... | 03/04/2008 |
| 7214481 | Charcoal stabilization of phenyl phosphates The invention discloses methods, compositions and kits for stabilizing a solubilized phenyl phosphate, preferably paranitrophenyl phosphate (PNPP), using charcoal. Also disclosed are methods, compositions and kits for recycling solubilized phenyl phosphate, preferab... | 05/08/2007 |
| 7189373 | Carbon monoxide removal from reformate gas Carbon monoxide contained in reformate gas is removed by a preferential oxidation reaction in a catalyst, two preferential oxidation reactors (20A, 20B) being disposed in series. Valves (7, 8) supply air containing oxygen as an oxidizing agent i... | 03/13/2007 |
| 7153688 | Rock assay for predicting oil or gas in target reservoirs The present invention relates to assays for ascribing catalytic activity to rock samples by virtue of zero-valent transition metals potentially being present within the sample. Embodiments of the present invention are generally directed to novel assays for measuring... | 12/26/2006 |
| 7144700 | Photolithographic solid-phase polymer synthesis Methods, employing a polycyclic hydrocarbon or a polycyclic heteroaromatic compound as sensitizers, are provided to increase the efficiency of removing, by irradiation, photolabile protecting groups that mask reactive sites on synthesis intermediaries. Preferred gro... | 12/05/2006 |
| 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 |
| 7018841 | Compositions and methods for the inhibition of neurotransmitter uptake of synaptic vesicles Compositions and methods for treating neurosynaptic disorder in a subject are described. More specifically, compositions and methods for inhibiting glutamate uptake by synaptic vesicles in a subject are set forth. In one embodiment, the composition is inhibitory pro... | 03/28/2006 |
| 7001717 | Charcoal stabilization of phenyl phosphates The invention discloses methods, compositions and kits for stabilizing a solubilized phenyl phosphate, preferably paranitrophenyl phosphate (PNPP), using charcoal. Also disclosed are methods, compositions and kits for recycling solubilized phenyl phosphate, preferab... | 02/21/2006 |
| 6950750 | Method of estimating the gas/oil ratio (GOR) in the fluids of a well during drilling A method of evaluating the volume ratio of gas to oil (GOR) in the fluids of a well during drilling by direct or indirect measurement of the volumes of gas and oil in the cuttings. The method includes determining the volume of gas (Vg) contained in the drilling flui... | 09/27/2005 |
| 6803235 | Methods of generating information about materials present in compositions and about particulates present in fluids utilizing a microscope The invention encompasses a method of generating information about materials in a composition. A reagent is utilized to dissolve portions of the composition, and thereafter is filtered through a substrate which is then scanned with a microscope using automated displ... | 10/12/2004 |
| 6793889 | Wide-range TOC instrument using plasma oxidation Total organic carbon in an aqueous or gaseous sample is measured by admitting the sample and an oxidant gas to a cell transparent to plasma, establishing a relatively low energy plasma in the cell, and measuring the CO2 thus produced using FTIR, NDIR, or ... | 09/21/2004 |
| 6653143 | Process and device of elemental analysis Elemental analysis of a sample is carried out in an oxygen atmosphere in a combustion reactor and the volume of oxygen required for analysis is determined by means of the algorithm... | 11/25/2003 |
| 6623974 | Method and apparatus for the analysis of a liquid carrying a suspension of organic matter The invention provides an ozone hydroxy radical analysis method for a liquid carrying a suspension of organic matter. The analyser includes a reactor vessel 2 having sample inlets and outlets 3 and 4 respectively for a liquid stream 5. The reactor vessel ... | 09/23/2003 |
| 6599747 | Soil test A test for determining the bioavailable fraction of an organic pollutant present in soil comprises determining the fraction of the organic pollutant present in the soil which may be extracted by a cyclodextrin or derivative thereof.... | 07/29/2003 |
| 6541268 | Carbon dioxide sensor and a method of determining partial pressure of carbon dioxide A carbon dioxide sensor including a closed chamber having as a wall substantially water-tight, carbon dioxide-permeable membrane and containing two electrodes. The chamber contains a film of de-ionized water contacting the membrane and both of the electro... | 04/01/2003 |
| 6451613 | Instruments for measuring the total organic carbon content of water An improved instrument for measuring the total organic carbon content of water provides substantially instantaneous TOC measurements that are repetitively calibrated, provides substantially improved accuracy of results in a circuit providing improved nois... | 09/17/2002 |
| 6447725 | Total organic carbon meter An ultrapure water trap is provided for retaining condensed water of water vapor which is formed in a TC oxidative reaction part, and a passage is so connected that an automatic sample injector can collect ultrapure water from the ultrapure water trap for... | 09/10/2002 |
| 6440746 | Method and apparatus for analyzing asphalt content An apparatus for pyrolysis of a bituminous paving mix is provided, comprising an oven having a bottom wall, a top wall, and side walls defining a combustion chamber, a sample support within the combustion chamber, an infrared heater mounted within the ove... | 08/27/2002 |
| 6375900 | Carbon analyzer with improved catalyst A carbon analyzer, is provided which includes a combustion chamber having a platinum on titania catalyst. The combustion chamber and catalyst are also provided. A method for analyzing carbon-containing specimens with such an analyzer is also provided as w... | 04/23/2002 |
| 6355609 | Methods for stabilizing liquid nutritional products and products so stabilized Nutritional solutions and methods of making same are disclosed. The solutions include protein, lipid, and a carbohydrate source including high amylose starch and guar gum.... | 03/12/2002 |
| 6319725 | Method for estimating composition of product obtained by liquefaction of coal The present invention provides a method of estimating ingredients of liquefaction products of coal or its analogues from a resonance spectrum thereof obtained using their solid state 13 C nuclear magnetic resonance spectrometer. The method comp... | 11/20/2001 |
| 6297058 | Process for determining impurities in refractory materials A small sample of a refractory material, e.g., about 0.1 g to about 10 g, is heated to at least 1000° C., generally under a pressure of less than about 10-5 Torr. Evolved hydrogen-containing gases and/or carbon-containing gases are monitored, ... | 10/02/2001 |
| 6235242 | Sample size characterization technique and apparatus for liquid analysis Apparatus and processes for water impurity analysis and for impurity analysis of various other liquids as well. Apparatus and processes are provided for physical characterization of liquid drops as a liquid sample builds up and then drops from a sample ne... | 05/22/2001 |
| 6207462 | Microwave apparatus and method for analysis of asphalt-aggregate compositions A method and apparatus are disclosed for analyzing the aggregate content of asphalt-aggregate compositions. The method includes placing a preheated, preweighed container carrying a sample of an asphalt-aggregate composition into a preheated furnace with t... | 03/27/2001 |
| 6190917 | Microwave apparatus and method for analysis of asphalt-aggregate compositions A method and apparatus are disclosed for analyzing asphalt-aggregate compositions. The method includes directing sufficient microwave radiation from a microwave source to a sample of an asphalt-aggregate composition to ignite the asphalt in the compositio... | 02/20/2001 |
| 6183695 | Reagentless oxidation reactor and methods for using same An improved apparatus and method is disclosed utilizing hydrogen absorption in combination with photolysis and/or electrolysis for in situ generation, i.e., without the need for adding chemical oxidizing agents, or enhancement of oxidizing conditions used... | 02/06/2001 |
| 6180413 | Low level TOC measurement method A method for the determination of total organic carbon in an aqueous sample by trapping the organic matter on a sorbent which is carbon free and analyzing the sorbent by combustion and determination of total CO2 by IR.... | 01/30/2001 |
| 6175676 | Fiber optic sensor and method of use thereof to determine carbon content of molten steel contained in a basic oxygen furnace The invention is directed to a gas cooled fiber-optic cable apparatus for use in a hostile environment, for instance adjacent a metallurgical furnace, and a method using the apparatus to determine carbon content of molten steel. The fiber-optic cable incl... | 01/16/2001 |
| 6063638 | Wet chemical oxidation technique and apparatus for water impurity Apparatus and processes for water impurity analysis and for impurity analysis of various other liquids as well. More particularly, the present invention concerns apparatus and processes for chemical oxidant and catalyst enhanced total organic carbon analy... | 05/16/2000 |
| 6054323 | Method and apparatus for analyzing asphalt content An apparatus and method for assaying an asphalt-containing composite material by irradiating the sample using a radiation source having a tunable preselected wavelength selected to closely approximate the absorbance wavelength of a particular material or ... | 04/25/2000 |
| 6007777 | Liquid sample carbon analyzer An analytical instrument measures carbon content of a liquid sample. The instrument includes a sample inlet, a reagent inlet, a rinsing solution inlet, a reaction chamber, a waste outlet and a syringe pump. A multiple port valve has a plurality of ports w... | 12/28/1999 |
| 5994145 | Reagents, methods and kits for detecting trichloroethylene and perchloroethylene Reagents, immunoassay methods, and kits for detecting the presence or amount of trichloroethylene or perchloroethylene in a sample. Reagents include antibodies, immunogens for preparing antibodies, and assay conjugates. The immunogens elicit high affinity... | 11/30/1999 |
| 5980833 | Carbon monoxide sensor A carbon monoxide sensor including a gas detecting portion and at least a pair of electrodes, wherein the gas detecting portion includes a metal oxide represented by a following formula; Cu1-x Bix Oy (0 | 11/09/1999 |
| 5958777 | Device for determining CO2 and CO in a geologic sediment A device for determining at least one petroleum characteristic of a geologic sediment sample placed in a boat, said device including a first heater heating said sample in a non-oxidizing atmosphere, a measuring component determining hydrocarbon-containing... | 09/28/1999 |
| 5955375 | Production of coal derivation products utilizing NMP-type solvent extraction A graphite of anisotrophy selected between substantially isotropic to highly anisotropic, or calcined coke graphitizable to such a graphite, or a pitch convertible into such a coke or graphite, is derived from bituminous coal. A first coal is extracted in... | 09/21/1999 |
| 5932174 | Device for chloride ion removal prior to chemical oxygen demand analysis A method of pretreating aqueous chemical oxygen demand (COD) samples to remove the risk of potential chloride ion interference. The method comprises acidifying an aqueous COD test sample, and thereafter passing the acidified sample through a source of pen... | 08/03/1999 |
