| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 436111000 | Amine and quaternary ammonium | 40 |
| 20080299669 | Methods and devices for analytical sensing of biogenic amines - Disclosed herein are chromogenic response polymers and methods and devices that utilize the disclosed polymers which are suitable for use in detecting the presence of and identity of biogenic amines. | 12-04-2008 |
| 20090068753 | Detection of bromamines and chloramines - A method for the detection of chloramines and bromamines which are indicative markers particularly of lung diseases using flow tube, drift tube or atmospheric chemical ionisation technologies. The method can also be utilised to detect oxidative stress related diseases, test the prophylactic effect of drugs given to a patient, and to detect the level of chloramines in swimming pools and like situations. | 03-12-2009 |
| 20090186419 | Luminescent Metal Oxide Films - The present invention relates to articles and methods involving luminescent films which may be useful in various applications. Luminescent films of the present invention may comprise a layer of metal oxide nanoparticles and, in some cases, may interact with an analyte to generate a detectable signal, whereby the presence and/or amount of analyte can be determined. In some embodiments, fluorescence resonance energy transfer (FRET) may occur between the luminescent film and the analyte. Such articles and methods may be useful in, for example, biological assays or in sensors. | 07-23-2009 |
| 20100035355 | METHOD FOR THE DETERMINATION OF BODY ODOR - A method for determining potential for body odor and a method for determining the effectiveness of a deodorant carried out by detecting a substance represented by the following formula (1) or a derivative thereof: | 02-11-2010 |
| 20100151585 | Method for determining degree of negative effect of macrophages on vertebrate - The present invention provides a method for determining the degree of macrophage-associated negative effects on a vertebrate including a human, the method including assaying diacetylpolyamine contained in a sample collected from the vertebrate. According to the method of the present invention, metabolic conditions of macrophages can be monitored, and the degree of macrophage-associated negative effects on a vertebrate (including a human) can be determined. Specifically, the present invention can predict, through assay of diacetylpolyamine, pathological condition which is considered a macrophage-related disease; e.g., recurrence of cancer or malignant tumor, or infiltration or activation of cancer or malignant tumor cells; denaturation or degeneration of neurons associated with Alzheimer's disease; or onset or progression of an autoimmune disease (e.g., rheumatism or Crohn's disease) or arteriosclerosis. Therefore, the present invention is very useful for clinical tests. | 06-17-2010 |
| 20100291699 | COMPOSITIONS AND METHODS FOR SIMULTANEOUS DETECTION OF VOLATILE SULFUR COMPOUNDS AND POLYAMINES - Disclosed are compositions and methods useful for the rapid and facile simultaneous detection of malodorous bacterial metabolites in samples of expired breath and other fluids. The invention enables estimation, by simple visual inspection and comparison against standards, of the concentration of polyamines and volatile sulfur compounds in the micromolar to millimolar range. | 11-18-2010 |
| 20120301969 | ACETAMINOPHEN ASSAY - In general, the present invention provides a reliable assay for the quantitative determination of p-aminophenol in an aqueous sample. More particularly, the present invention provides a rapid enzyme-based assay for the quantitative determination of acetaminophen in a sample. The assay employs a xylenol chromophore and a catalyst that is preferably a weak oxidizer. The assay provides reliable results in the presence or absence of N-acetylcystiene (NAC) and can therefore be used to monitor acetaminophen levels during NAC treatment. Methods and kits for determining acetaminophen concentration in an aqueous sample are also provided. | 11-29-2012 |
| 20130183766 | OPTOELECTRICAL VAPOR SENSING - A chemical sensor can comprise a nanofiber mass of p-type nanofibers having a HOMO level greater than −5.0 eV. Additionally, the chemical sensor can comprise oxygen in contact with the p-type nanofibers. Further, the chemical sensor can comprise a pair of electrodes in electrical contact across the nanofiber mass, where the p-type nanofibers conduct an electric current that decreases upon contact with an amine compound. | 07-18-2013 |
| 20130280817 | MULTIFUNCTIONAL DETECTOR FOR GASEOUS COMPOUNDS, AND USES THEREOF - The invention relates to a multifunctional detector for gaseous compounds, or mixtures of gaseous compounds, selected from NH | 10-24-2013 |
| 20130302902 | NANOFIBRIL MATERIALS FOR HIGHLY SENSITIVE AND SELECTIVE SENSING OF AMINES - A sensory material with high sensitivity, selectivity, and photostability has been developed for vapor probing of organic amines. The sensory material is a perylene-3,4,9,10-tetracarboxyl compound having amine binding groups and the following formula | 11-14-2013 |
| 20140004615 | KIT FOR MARKING AND/OR DETECTING ALTERATION OF FUEL AND ITS METHOD THEREOF | 01-02-2014 |
| 20140093970 | METHOD FOR DIAGNOSING ACUTE ALCOHOLIC HEPATITIS - A method for determining whether a subject has alcoholic hepatitis is described. The method includes determining the levels of a trimethylamine in a biological sample obtained from the subject. The level of trimethylamine in the biological sample is compared to the control value, and the subject whose level of trimethylamine exceeds the control value is diagnosed as having alcoholic hepatitis. | 04-03-2014 |
| 20140206095 | FLUORESCENCE DETECTION OF CYSTEINE AND HOMOCYSTEINE - Embodiments of probes for selectively detecting compounds having a thiol group and an amino group, e.g., cysteine and/or homocysteine, are disclosed, along with methods and kits for detecting the compounds in neutral media with the probes. The probes have a structure according to the general formula where R | 07-24-2014 |
| 20140256053 | REVERSIBLE COLOR-CHANGING INK FORMULATIONS AND NONWOVEN WIPES - A reversible color-changing ink formulation, and a nonwoven wipe to which the ink formulation is securely bound, are provided. The reversible color-changing ink formulation includes about 55-98% by weight of a polymer binder, about 0.1-20% by weight of a reversible color-changing dye that reversibly changes between a first color and a second color at a pH of about 5.5 to about 8.0, and optional amounts of plasticizer, inorganic particulate filler, and color brightener. During use, the nonwoven wipe is impregnated with a sanitizer solution that contains a quaternary ammonium compound. The nonwoven wipe reversibly changes between a first color when impregnated with the sanitizer solution and a second color when the sanitizer solution is depleted during use. The change to the second color indicates the need to recharge the nonwoven wipe with the sanitizer solution, whereupon the first color returns. | 09-11-2014 |
| 20140273258 | Functional Element for Arranging in Front of the Active Measuring Region of a Sensor Element - A functional element positioned in front of an active detection region of a sensor element has a compact main body with a gas-side surface, a sensor-side surface, and at least two functional channels located between the gas-side surface and the sensor-side surface. The functional channels have a functionality that is different from one another with respect to a gas that can pass through. Such a functional element allows particularly variable operation of a sensor with great long-term stability. | 09-18-2014 |
| 20150056712 | Methods for Analyzing Cysteamine Compositions - Methods of analyzing purity of compositions comprising cysteamine and detecting impurities in cysteamine compositions are described. | 02-26-2015 |
| 20150140676 | METHOD FOR DIAGNOSING ACUTE ALCOHOLIC HEPATITIS - Various methods for determining whether a subject has alcoholic hepatitis are described. In one aspect, a method for determining whether a subject has alcoholic hepatitis is described. The method includes determining the levels of a trimethylamine in a biological sample obtained from the subject. The level of trimethylamine in the biological sample is compared to the control value, and the subject whose level of trimethylamine exceeds the control value is diagnosed as having alcoholic hepatitis. In another aspect of the present invention a method for assessing a subject as having alcoholic hepatitis (AH) includes determining the level of trimethylamine and the level of pentane in a biological sample obtained from the subject. A TAP score is determined based on the concentration of trimethylamine and the concentration of pentane. The subject is diagnosed as having alcoholic hepatitis if the TAP score exceeds a control value. | 05-21-2015 |
| 20150362466 | REAL TIME INDICATOR FOR QUATERNARY AMMONIUM COMPOUND CONCENTRATION - The present disclosure generally relates to a color indicator that signals when the concentration of an antimicrobial solution changes. In some embodiments, the color indicator is specific for changes in the concentration of an antimicrobial quaternary ammonium compound in an antimicrobial solution. The color indicator can be incorporated into a variety of articles including towels, labels, containers, buckets, trays, sinks, spray bottles, liners for containers, buckets, sinks, or spray bottles, indictor wands or strips, and test kits. | 12-17-2015 |
| 20160109433 | APPARATUS FOR SIMULTANEOUS DETECTION OF AMINES AND THIOLS - Disclosed is an apparatus for simultaneous detection of amines and thiols. | 04-21-2016 |
| 20160169872 | CHEMICAL SENSITIVITY SCREENING TEST | 06-16-2016 |
| 436112000 | Tertiary amine | 5 |
| 20110065202 | Method for Examination of Alzheimer's Disease - A method for examining Alzheimer's disease comprising (1) the measurement step of measuring an amount of lidocaine or a metabolite thereof in a cerebrospinal fluid derived from a lidocaine-administered test subject, and (2) the determination step of determining whether the test subject has Alzheimer's disease or not on the basis of the measured amount. | 03-17-2011 |
| 20120322160 | METHOD FOR DISCOVERING PHARMACOLOGICALLY ACTIVE SUBSTANCE OF NATURAL PRODUCTS USING HIGH RESOLUTION MASS SPECTROMETRY AND PHARMACOLOGICAL ACTIVITY TEST - A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products. | 12-20-2012 |
| 20140273259 | Low-Dimensional Material Chemical Vapor Sensors - A method of making a low-dimensional material chemical vapor sensor comprising exfoliating MoS | 09-18-2014 |
| 20150079690 | DISINFECTION AND CLEANING CONFIRMATION SYSTEM - An indicator kit for detecting the presence of a quaternary ammonium compound disinfectant is provided. The kit includes an indicator composition that includes an azo dye material and water; an extraction composition that includes water, and at least one of a C1-C7 alcohol or a glycol ether; and an acidic compound present in at least one of the indicator composition, the extraction composition, or an acidic developer solution packaged separately from the indicator composition and the extraction composition. A method of detecting a quaternary ammonium compound disinfectant on a surface is also provided. | 03-19-2015 |
| 20150377790 | APPARATUS AND METHOD FOR WATER TESTING SYSTEM - A water testing system having a water sample container that is adapted to retain a water sample, a color indicator container that is adapted to dispense a color indicator which is adapted change the color of the water sample when the water sample contains DTC, and a colorimeter that is adapted to automatically determine a blank value and the concentration of sodium dimethyldithiocarbamate in the water sample. A method for determining the concentration of DTC in a water sample comprising providing a water testing system, placing the water sample in the water sample container, placing the water sample container in the colorimeter, automatically determining a blank value, adding the color indicator to the water sample, placing the water sample container in the colorimeter, and automatically determining the concentration of DTC in the water sample. | 12-31-2015 |
| 436113000 | Ammonia | 15 |
| 20080274559 | Gas Sensor for Determining Ammonia - The invention relates to a gas sensor which is used to detect ammonia by detecting and evaluating conductivity variations on semi-conductive metal oxides, comprising: a substrate, a gas sensitive layer made of a semi-conductive metal oxide, a catalytic filter which is disposed in front of the metal oxide, said filter being used to convert ammonia, contained in the measuring gas, into a NO/NO2 mixture or to only NO2, measuring electrodes which are arranged on the surface of the substrate in order to detect conductivity variations in the semi-conductive metal oxide which is at least sensitive to NO/NO2, a controllable electric heating device which is used to adjust predetermined temperatures at least for the semi-conductive metal oxide, whereby the formed NO/NO2 can be guided to the metal oxide and the content of ammonia in the measuring gas can be determined from the NO/NO2-measurement by means of the semi-conductive metal oxide. | 11-06-2008 |
| 20100197034 | SAMPLE HOLDER FOR MALDI MASS SPECTROMETRIC ANALYSIS, AND MASS SPECTROMETRIC ANALYSIS METHOD - Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 μm. | 08-05-2010 |
| 20120009687 | HYBRID CHEMICAL SENSOR, AND, SENSITIVE POLYMERIC COMPOSITION - The present invention relates to chemical sensors with hybrid characteristics, which are thermo-mechanically stable and able to respond to changes in the environment, particularly in the presence of amine and/or amide and/or oxide-reducing compounds, and/or vapor thereof by color change, as well as its incorporation into sensitive polymeric composition. | 01-12-2012 |
| 20120028363 | METAL POROUS MATERIAL, METHOD FOR PREPARING THE SAME AND METHOD FOR DETECTING NITROGEN-CONTAINING COMPOUNDS - The invention provides a metal porous material, a method for preparing the same, and a method for detecting nitrogen-containing compounds. The method for fabricating metal porous material includes: mixing a siloxane, a metal or metallic compound, and water, to obtain a mixture after stirring; modifying the mixture to a pH value of less than 7; subjecting the mixture to a first dry treatment to obtain a solid; after polishing the solid to obtain a powder, subjecting the powder to a second dry treatment. It should be noted that the method is free of any annealing or calcination process. | 02-02-2012 |
| 20120115239 | VAPOCHROMIC COORDINATION POLYMERS FOR USE IN ANALYTE DETECTION - Vapochromic coordination polymers useful for analyte detection are provided. The vapochromism may be observed by visible color changes, changes in luminescence, and/or spectroscopic changes in the infrared (IR) signature. One or more of the above chromatic changes may be relied upon to identify a specific analyte, such as a volatile organic compound or a gas. The chromatic changes may be reversible to allow for successive analysis of different analytes. The polymer has the general formula M | 05-10-2012 |
| 20120164743 | MICROCHANNEL CHIP AND METHOD FOR GAS-LIQUID PHASE SEPARATION USING SAME - A microchannel chip having a microchannel formed in a substrate and a gas-liquid phase separation microchannel whose upper part is covered with a porous film, the gas-liquid phase separation microchannel being connected to the downstream end of the microchannel and having a depth of 10 μm to 100 μm. Also, a gas-liquid phase separation method which is a method for separating a liquid-phase flow from a two-phase flow flowing through a microchannel by removing a gas phase, the two-phase flow composed of the gas phase and the liquid phase, which liquid phase flows in the periphery of the above-described microchannel and which gas phase flows interiorly of the liquid-phase flow. | 06-28-2012 |
| 20120276647 | Intelligent Pigments and Plastics - A chemical indicator comprises a particulate inorganic substrate, and at least one reactive dye or ink coated on and/or impregnated within the particulate inorganic substrate. Coating and/or impregnating at least one reactive dye or ink on or within a particulate inorganic substrate improves the storage stability and/or thermal stability of the at least one reactive dye or ink, which typically comprises relatively unstable compounds. This allows the present indicators to be incorporated into thermoplastic polymer materials and processed conventionally while maintaining the efficacy and stability of the new indicators. The indicators provide simple, reliable, and cost effective detection means for detecting analytes such as ammonia, carbon dioxide, and oxygen, and may find use in applications such as food packaging and medical applications. | 11-01-2012 |
| 20120288951 | DETECTION OF VAPOR PHASE COMPOUNDS BY CHANGES IN PHYSICAL PROPERTIES OF A LIQUID CRYSTAL - The present invention relates to the field of detection of components in gas phase, and in particular to detection of nitric oxide exhaled as a component of breath, using a liquid crystal assay format and a device utilizing liquid crystals as part of a reporting system. | 11-15-2012 |
| 20120288952 | DIAGNOSTIC TOOL AND PROCESS FOR ASSESSING THERMAL UREA GASIFICATION PERFORMANCE - Disclosed are methods and apparatus for treating and analyzing a gas stream to determine the effectiveness of urea gasification. The apparatus will be capable of performing the method and will include: means for introducing an aqueous solution of urea into a reactor having hot gases therein and subjecting the aqueous to temperatures for a time to assure the gasification of the aqueous urea and form a thermal gasification product stream containing NH | 11-15-2012 |
| 20120288953 | OXAZINE-BASED SENSOR FOR CONTAMINANT DETECTION, FABRICATION METHOD THEREFOR, AND USES THEREOF - A sensor, a method for its fabrication, and a method for its use to detect contaminants, for example, ammonia, in stagnant and dynamic fluid media, especially liquid media. The sensor is an opto-chemical sensor that includes a polymer optical fiber, a sensing layer comprising oxazine 170 perchlorate on the polymer optical fiber, and a membrane layer on the sensing layer. The membrane layer is gas permeable and not permeable to the fluid in the fluid system, and moisture is entrapped by and between the sensing and membrane layers. | 11-15-2012 |
| 20130157377 | AMMONIA COMPOUND CONCENTRATION MEASURING DEVICE AND AMMONIA COMPOUND CONCENTRATION MEASURING METHOD - An ammonia compound concentration measuring device includes: a pipe unit through which the circulating gas flows; a converter which is disposed in the pipe unit and converts an ammonia compound into ammonia; a measurement device which measures a first measurement value as a concentration of ammonia contained in a first circulating gas flowing inside a pipe line passing through the converter in the circulating gas flowing inside the pipe unit and a second measurement value as a concentration of ammonia contained in a second circulating gas flowing inside a pipe line not passing through the converter in the circulating gas flowing inside the pipe unit; and a controller which controls operations of the pipe unit and the measurement device and calculates the concentration of the ammonia compound of the measurement subject contained in the circulating gas from a difference between the first measurement value and the second measurement value. | 06-20-2013 |
| 20140087475 | METHOD FOR DETECTING SOUR ODOR FROM AIR CONDITIONER, REPRODUCING SOUR ODOR AND PREPARING CORRESPONDING SOUR ODOR COMPOSITION - Disclosed herein is a method for identifying compounds contributing to a sour odor emitting from an air conditioner, a method for artificially reproducing the detected sour odor and preparing a corresponding sour odor composition. Through the analysis method of the present invention, the compounds contributing to the sour odor emitted from an air conditioner may be identified and quantified. The detected sour odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced sour odor may provide meaningful data required for development of an apparatus and a method for removing specific odors. | 03-27-2014 |
| 20140186968 | METHOD FOR DETECTING FISH-LIKE ODOR FROM AIR CONDITIONER, REPRODUCING FISH-LIKE ODOR AND PREPARING CORRESPONDING FISH-LIKE ODOR COMPOSITION - A method that identifies the compounds contributing to a fish-like odor from an air conditioner and artificially reproduces the fish-like odor, and prepares a corresponding fish-like odor composition. Through the analysis method of the present invention, the compounds contributing to the fish-like odor from an air conditioner are identified and quantified. The fish-like odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fish-like odor provides significant data required for development of an apparatus and a method for removing specific odor. | 07-03-2014 |
| 20160060460 | PROCESS FOR PRODUCING A PARTIALLY BALANCED ACID SOLUTION - A process for producing a partially balanced acid solution that involves metering dicarboxylic acid powder, based on weight, from a loss-in-weight feeder to a feeding conduit that transfers the dicarboxylic acid powder at a low variability feed rate into an in-line disperser, adding a first feed stream of diamine to the in-line disperser in an amount sufficient to form the partially balanced acid solution having a solids content of less than 60%, and storing the partially balanced acid solution at a temperature to maintain the dissolved dicarboxylic acid and to prevent formation of a slurry. The partially balanced acid solution may be used as a feed solution to prepare a nylon salt solution. Process controls for the process are also disclosed. | 03-03-2016 |
| 20160061791 | Automatic Ammonium Analyzer - For an automated determination of a ammonia nitrogen content in a liquid sample, an analyzer and method are provided. The following steps are performed by the method: generating a reagent solution by electrolysis that contains hypochlorite ions to be added to the liquid sample, and feeding the reagent solution into the liquid sample; feeding at least one other reagent solution into the liquid sample and generating a reaction mixture from the reagent solutions and the liquid sample; sensing a measuring signal with a photometric measuring device that correlates with a measuring variable of the reaction mixture; and on the basis of the measuring signal, determining a measuring value for the ammonia nitrogen content with an electronic control device. | 03-03-2016 |
