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| Number | Title | Issue Date |
| 7531361 | Coloration agent for carbonyl sulfide, detecting means and fuel cell system Provided are a coloration agent for carbonyl sulfide which contains a metal oxide, and at least one metal component selected from among a cerium component, a silver component, a copper component, a nickel component, and an iron component, the metal component being s... | 05/12/2009 |
| 7247699 | Process for purification of crude polyether and adsorbent A process for purifying a crude polyether, comprising contacting a crude polyether obtained by addition polymerizing an active hydrogen-containing compound with an alkylene oxide compound in the presence of an alkali metal-containing basic catalyst to an adsorbent c... | 07/24/2007 |
| 7199993 | Ion-generating component, ion-generating unit, and ion-generating apparatus An ion-generating component has, on an insulating substrate, a ground electrode, a high-voltage electrode, an insulating film provided on the surface of the ground electrode, and a wire electrode. A cutout is formed by cutting out one side of the insulating substrat... | 04/03/2007 |
| 7160689 | Pretreatment instrument of saliva and pretreatment method of saliva In a pretreatment instrument and a pretreatment method of saliva, used for identification and quantitation of Streptococcus mutans in saliva by the immunochromatographic method utilizing an antigen-antibody reaction, the instrument includes a swab and a mixin... | 01/09/2007 |
| 7125580 | Method for preparing a solid phase microextraction device using aerogel A sample collection substrate of aerogel and/or xerogel materials bound to a support structure is used as a solid phase microextraction (SPME) device. The xerogels and aerogels may be organic or inorganic and doped with metals or other compounds to target specific c... | 10/24/2006 |
| 7105274 | Photoluminescent ethylene sensors A photoluminescent polymer/transition metal complex is disclosed which is capable of selectively binding to alkenes to thereby alter the photoluminescence of the complex. In one embodiment, a poly(vinyl phenyl ketone)/Ag(I) complex is disclosed which reversibly and ... | 09/12/2006 |
| 7082774 | Compressor oil removal in ammonia refrigeration system Automatic oil removal from an ammonia evaporator/low pressure vessel in a refrigeration system is disclosed. A liquid refrigerant level controller is utilized to drain the oil. The controller works under the principle of fluid thermal conductivity. Oil having lower ... | 08/01/2006 |
| 7074365 | Detector for halogen toxicants and method The invention herein provides for the detection of certain organic halogen-containing agents or toxicants such as sarin, chloropicrin, mustard gas, mustard chlorohydrin, phosgene, chlorine, soman, lewisite, diphosgene and others by, in one embodiment, first reacting... | 07/11/2006 |
| 7049149 | Biological marker for stress states The object of the invention is to propose a novel biomarker for stress states, which biomarker is highly meaningful and capable of enabling quantitative measurements to be made of stress levels. To do this, it has been found, surprisingly, that the air at the end of... | 05/23/2006 |
| 7026166 | Fluorogenic dyes The present invention relates to the use of fluorogenic or chromogenic dyes as reporter molecules for detecting cell entry by a specific molecule. ... | 04/11/2006 |
| 6998271 | Luminescent sensory material for organic-halogen compounds, and methods and apparatus utilizing such A luminescent sensory material for the detection of the presence of organo-halogen compounds is described. This material is based on a platinum chromophore functionalized with pyridylacetylide ligands, as shown in Formulae I and II below. These complexes exhibit pos... | 02/14/2006 |
| 6905031 | Solid phase microextraction device using aerogel A sample collection substrate of aerogel and/or xerogel materials bound to a support structure is used as a solid phase microextraction (SPME) device. The xerogels and aerogels may be organic or inorganic and doped with metals or other compounds to target specific c... | 06/14/2005 |
| 6815206 | Container monitoring system A sterilization system uses a sterilization process monitoring device which is capable of indicating the efficacy of the sterilization process. To enhance accuracy of the monitoring function, the monitoring device is located in such a fashion that an antimicrobial a... | 11/09/2004 |
| 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 |
| 6589796 | Method for measuring iodine and reaction instrument for specimen pretreatment A iodine-measuring method for determining or detecting iodine concentration in a specimen, comprising a specimen-pretreating step of thermally digesting a specimen together with an oxidizing agent, and a subsequent reaction-measuring step of reacting the ... | 07/08/2003 |
| 6461872 | Poly(1,4-ethylene-2-piperazone) composition, method for production of a poly(1,4-ethylene-2-piperazone) composition, TCE-detecting method and sensor A composition of matter has the formula: ##STR1## where n is an integer equal or greater than 1. The composition of matter possesses characteristic absorbance behavior with respect to infrared and visible energy, which is used to detect and determine the ... | 10/08/2002 |
| 6436311 | Sampling material for a carbonyl compound in a gas A sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger; and a sampling cartridge for a carbonyl compound in a gas wherein a sampling mater... | 08/20/2002 |
| 6193931 | Container monitoring system A sterilization system using a sterilization process monitoring device which is capable of indicating the efficacy of the sterilization process in an enclosed sterilization container while still maintaining the sealed state of the sterilization container.... | 02/27/2001 |
| 6060325 | Detection and monitoring of toxic halogenated compounds The present invention is directed to a method for determining the halogen toxicity level in a sample containing halogenated compounds, specifically halogen containing rubbers by utilizing thermal electrons formed inside a mass spectrometer operated at neg... | 05/09/2000 |
| 5962334 | Process for extracting 2,3,7,8-tetrachlorodibenzo-p-dioxin A process for the extraction and purification of TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin) from a sample matrix. The process of the present invention overcomes a problem of prior art processes for extracting TCDD, by providing for chemical destruction of... | 10/05/1999 |
| 5942439 | Method for isotopic analysis of chlorinated organic compounds The present invention provides a method for preparing a VOC sample for carbon and chlorine isotope ratio analysis by mass spectrometer. A VOC sample is placed in a combustion tube and reacted with CuO to form CO2 and CuCl. The CO2 is... | 08/24/1999 |
| 5866073 | Detector of halogenated compounds based on laser photofragmentation/fragment stimulated emission A method and apparatus is provided for real-time detection of trace amounts of atmospheric and tropospheric halogen-containing compounds. The present invention can be used either for in situ detection or remote sensing. A laser is employed to induce photo... | 02/02/1999 |
| 5766952 | Vapochromic platinum-complexes and salts The present invention relates to a process for indicating the presence of organic vapors comprising the steps of determining the color, absorption or emission spectra of a Pt--Pt double-complex salt of platinum or a neutral platinum complex in the absence... | 06/16/1998 |
| 5759820 | Process for producing cDNA The process includes the steps of: a) contacting a liquid containing mRNA with an insoluble support having DNA probes attached thereto via the 5' -terminus thereof whereby the MRNA is hybridized to said probes and hence to said support; b) removing said l... | 06/02/1998 |
| 5679576 | Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether The present invention provides a method in which organic matter in the product accompanied with a non-reacted hydrogen fluoride can be handled without damaging the apparatus, using a cross-linked cyanopropylmethylphenylsilicone capillary column with which... | 10/21/1997 |
| 5665555 | Method of determining the effect of a test substance on a clone of a Centroptilum triangulifer mayfly A method of determining the effect of a test substance on any life stage of at least one clone of a Centroptilum triangulifer mayfly comprising (A) identifying and selecting at least one clone of Centroptilum triangulifer as a test clone to be subjected t... | 09/09/1997 |
| 5641686 | Flow injection trace gas analysis method for on-site determination of organoarsenicals A method for real-time determination of the concentration of Lewisite in the ambient atmosphere, the method includes separating and collecting a Lewisite sample from the atmosphere in a collection chamber, converting the collected Lewisite to an arsenite ... | 06/24/1997 |
| 5601979 | Prepasration and use of magnetic controlled pore glass having oligonucleotides synthesized thereon A functionalized, magnetic controlled pore glass support useful in solid phase DNA synthesis is described. The support acts as a universal solid phase for direct oligonucleotide synthesis. The oligonucleotide bound MPG is useful directly to isolate or pur... | 02/11/1997 |
| 5599716 | Measurement of radioactive content of waste and plant items by radiolytic transformation of reactant gases A process for the measurement of the level of radioactivity of a solid by contacting the solid with a chemically stable reactant fluid. The reactant fluid is converted by nuclear radiation to a chemically stable product fluid to an extent dependent upon t... | 02/04/1997 |
| 5576216 | Universal standard reagents, method of preparing same and use thereof A universal standard chemical reagent for quantitative visual and spectrometric analysis of compounds having reactive functional groups, including mixtures and homologs of said compounds, said reagent comprising a compound of the general formula Q-B-f, wh... | 11/19/1996 |
| 5576217 | Solid phase microextraction of trace amounts of organic analytes A method for enhancing detection sensitivity of suspected trace amounts of organic analytes and particularly semivolatile organic analytes extractable from a sample by an organic solvent carrier matrix and subsequent extraction and analysis of said trace ... | 11/19/1996 |
| 5536172 | Quantification of photoreactive aromatic compounds A method for determining the amount of photoreactive polynuclear aromatic compound in a sample is described. A sample containing an unknown amount of a photoreactive polynuclear aromatic compound is mixed with a known quantity of a polyhalogenated organic... | 07/16/1996 |
| 5525520 | Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the light emitted from the complex will indicate the presence of t... | 06/11/1996 |
| 5514595 | Method for analyzing refrigerant properties One or more properties of a refrigerant sample, such as composition, purity or both composition and purity, are analyzed for purposes of refrigerant recovery and reuse by providing a refrigerant cell having a chamber for containing a refrigerant sample an... | 05/07/1996 |
| 5490971 | Chemical detector Apparatus for chemical detection includes a cap for coupling with a sample vial containing a sample. The sample includes at least one chemical to be detected. The cap includes a reagent vial which contains a liquid reagent. The reagent vial includes a mem... | 02/13/1996 |
| 5469714 | Method and apparatus for analyzing refrigerant properties One or more properties of a refrigerant are analyzed by evacuating a refrigerant sample vessel, drawing a refrigerant vapor sample into the vessel, and condensing the refrigerant sample within the vessel for measurement and indication of one or more desir... | 11/28/1995 |
| 5457056 | Halohydrocarbon sensing chemistry with base modifier A base modifier is added to a pyridine/base reagent composition to improve the ability to detect halogenated hydrocarbons like TCE and chloroform. The base modifier is an organic base which facilitates formation of a stable final reaction product. New bas... | 10/10/1995 |
| 5427955 | Photochemical determination of organic compounds A method for measuring or detecting halogenated organic compound content. For example, the method can be used to identify polychlorinated biphenyls ("PCB's"), contaminating soil or oil. The method is based on a light induced color producing reaction betwe... | 06/27/1995 |
| 5371019 | Method and apparatus for analyzing refrigerant properties One or more properties of a refrigerant are analyzed by evacuating a refrigerant sample vessel, drawing a refrigerant vapor sample into the vessel, and condensing the refrigerant sample within the vessel for measurement and indication of one or more desir... | 12/06/1994 |
| 5368819 | Automated process chloride analyzer An automated analysis system is provided for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a water scrubbing vessel for extracting impurities from the... | 11/29/1994 |
