| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 436056000 | TRACERS OR TAGS | 23 |
| 20120184038 | TAGGING SYSTEM AND METHOD - A method of tracing an aqueous liquid, particularly an aqueous urea used for addition to a selective catalytic reduction system to remove NOx from diesel exhaust, includes adding a tracer comprising a pre-determined amount of a phenol to the liquid. The liquid can subsequently be identified by reacting a sample with a reagent containing a predetermined amount of 4-aminoantipyrine in the presence of an initiating compound such that the reaction between the reagent and a phenol in the liquid produces a chromophore and measuring the absorbance of the resulting solution of the chromophore. | 07-19-2012 |
| 20100330680 | LABELING PEPTIDES WITH TERTIARY AMINES AND OTHER BASIC FUNCTIONAL GROUPS FOR IMPROVED MASS SPECTROMETRIC ANALYSIS - The present invention provides methods for enhancing the fragmentation of peptides for mass spectrometry by modifying the peptides with a tagging reagent containing a functional group, such as a tertiary amine, having a greater gas-phase basicity than the amide backbone of the peptide. These high gas-phase basicity functional groups are attached to a peptide by reacting the tagging reagent to one or more available carboxylic acid groups of the peptide. Linking these high gas-phase functional groups to the peptides leads to higher charge state ions from electrospray ionization mass spectrometry (ESI-MS), which fragment more extensively during fragmentation techniques, particularly non-ergodic fragmentation techniques such as electron capture dissociation (ECD) and electron transfer dissociation (ETD). | 12-30-2010 |
| 20080311666 | Isotopically labeled compositions and method - Compounds having stable isotopes | 12-18-2008 |
| 20120034699 | NUCLEIC ACID-LABELED TAGS ASSOCIATED WITH ODORANT - A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule, an odorant, and an encapsulant. Unique nucleic acid-containing tags containing an odorant are seeded at one or more geographic locations. Using odorant-detection systems, the person or object of interest is examined for the presence of one or more of the odorant, thereby revealing the presence of the seeded nucleic acids and eliminating the expense and time associated with unnecessary screening. The geographic location associated with each detected nucleic acid is used to backtrack the item's path or extrapolate a probable point of origin. | 02-09-2012 |
| 20100112705 | POLYNUCLEOTIDES FOR USE AS TAGS AND TAG COMPLEMENTS, MANUFACTURE AND USE THEREOF - A family of minimally cross-hybridizing nucleotide sequences, methods of use, etc. A specific family of 210 24mers is described. | 05-06-2010 |
| 20110111510 | METHODS TO EVALUATE CYTOCHROME P450 2C19 ISOENZYME ACTIVITY USING A BREATH TEST - The present invention relates, generally to a method of determining and assessing cytochrome P450 2C19-related (CYP2C19) metabolic capacity in an individual mammalian subject via a breath assay, by determining the relative amount of | 05-12-2011 |
| 20080213904 | Monitoring drug compliance, food-intake or toxin-intake using non-invasively-read labels - A system is disclosed for monitoring a property of an ingested or in-taken drug, food, drink or toxic substance, non-invasively or minimally invasively, which can also identify the subject person being monitored, if desired. The system comprises: a means of labeling the substance with a labeling media to have a useful signature indicative of, or bearing a relation to the property; a means to allow the signature to be read non-invasively or minimally invasively; and a means to identify, in any manner, who is being monitored. | 09-04-2008 |
| 20100159604 | AUTOMATED SOLUTION-PHASE ITERATIVE SYNTHESIS - The first method for iterative solution-phase biomolecule synthesis is described. The method requires only 3 or fewer equivalents of building block at each coupling cycle, and incorporates a FSPE step at the end of each coupling/deprotection sequence to eliminate most byproducts. | 06-24-2010 |
| 20100304491 | Method and System For Detection Using Nanodot Taggants - Described herein are methods directed to the use of the nanodot taggants in detection and/or simulation scenarios. The nanodot taggants are based on quantum dots and may be engineered so as to have particular emission and or absorbance spectral characteristics. The nanodots are extremely small, i.e., on the order of nanometers in size, and thus do not, in some cases, behave as particles, but rather are able to be carried along and through structures like a gas. | 12-02-2010 |
| 20100317116 | SINGLE-MOLECULE REAL-TIME ANALYSIS OF PROTEIN SYNTHESIS - The present invention is generally directed to compositions, methods, and systems for performing single-molecule, real-time analysis of analytical reactions in which protein synthesis is occurring. The ability to analyze such reactions provides an opportunity to study those reactions as well as to potentially identify factors and/or approaches for impacting such reactions, e.g., to either enhance, inhibit, or otherwise affect such reactions including, but not limited to, affecting the reaction rate, processivity, fidelity, duration, and the like. | 12-16-2010 |
| 20110081723 | Detection of Explosives Through Luminescence - A method of simultaneously detecting peroxide and nitrogen-based explosives includes the steps of applying a conversion reagent to a sample, the conversion reagent oxidizing in the presence of peroxide and inorganic nitrate explosives; applying a test reagent including a luminescent compound to the sample; exciting the luminescent compound with ultraviolet light; and simultaneously determining the presence of one or more explosives based on quenching, brightening or a shift in wavelength of the luminescence over time. Explosives may also be detected based on color changes of the sample. Optionally, phase transfer reagents, catalysts, colorimetric agents and zinc dust may be added to improve detection of explosives. Alternatively, an assay-type method may be utilized wherein a sample is added to the conversion and/or test reagents and the reagent is spotted on a substrate before exposure to ultraviolet light. | 04-07-2011 |
| 20100297774 | TAGGING METHOD - A method of identifying a product comprises forming a tagged product by adding to said product a tracer material comprising at least one tracer compound which is acceptable for use as an additive in food and subsequently analysing a sample of said product to determine the presence of said tracer compound thereby to determine whether said sample is a sample of the tagged product. The method is especially useful for the identification of vegetable oil products from sustainably managed sources. The use of permitted food additives as tracers enables the product to be identified in the supply chain whilst also allowing it to be used safely in foodstuffs if required. | 11-25-2010 |
| 20120171772 | TAGGED JOINT COMPOUND AND METHOD OF IDENTIFICATION - At least one of these or other problems is reduced using a building material that is uniquely identifiable. A method of making an identifiable gypsum-based building product includes selecting a tagging material occurring naturally in a component of the building material and choosing a carrier substance having a high concentration of the tagging material. By selecting an amount of the carrier substance and adding it to the building material, a building product having a unique product characteristic is created. In a second embodiment of the invention, a second tagging material is combined with the first tagging material to create a unique product. In yet another embodiment of the invention, a supplemental amount of the tagging material is added to the gypsum-based composition in addition to the carrier substance. Some tagging materials are useful in a gypsum-based composition to produce a visual confirmation of the presence of the tagging material. | 07-05-2012 |
| 20100022009 | REMOTE IDENTIFICATION OF EXPLOSIVES AND OTHER HARMFUL MATERIALS - Embodiments of the present invention are generally directed to the remote detection of explosives and other harmful materials. In some such embodiments, such remote detection involves the use of semiconducting nanoparticles. In some or other such embodiments, such remote detection involves the use of photoacoustic detection and/or spectroscopy. In some such latter embodiments, the photoacoustic system comprises a light source | 01-28-2010 |
| 20100022010 | CHEMICAL AGENT DETECTION METHOD AND APPARATUS - A method and apparatus for detecting Chemical Warfare Agents (CWA) and Toxic Industrial Chemicals (TICs) that is simple, cost-effective, non-instrumental, and environmentally robust. Illustrative embodiments provide a material that responds by a color change and/or a change, in fluorescence when exposed to the toxic-chemical vapors. | 01-28-2010 |
| 20080274553 | METHOD TO DETECT AND CHARACTERIZE CONTAMINANTS IN PIPES AND DUCTS WITH INTERACTIVE TRACERS - A method and an apparatus for detecting, locating, and quantifying contamination in a fluid flow system like a pipe or duct. This characterization technique uses a conservative and one or more interactive tracers that are injected into the fluid flow system and then monitored at another location in the system. Detection, location, and quantification are accomplished by analysis of the characteristic features of measured curves of tracer concentration. | 11-06-2008 |
| 20110306141 | Location Analysis Using Fire Retardant-Protected Nucleic Acid-Labeled Tags - A nucleic acid tag comprising a nucleotide-support platform attached to a nucleic acid molecule, a fire retardant, and an encapsulant. Unique nucleic acid-containing tags containing a fire- or heat-protective element are seeded at one or more geographic locations. Using sequence analysis techniques, the person or object of interest is examined for the presence of one or more of the seeded nucleic acids. The geographic location associated with each detected nucleic acid is used to backtrack the item's path or extrapolate a probable point of origin. | 12-15-2011 |
| 20120045839 | METHOD OF MARKING A PRODUCT, MARKED PRODUCT RESULTING THEREOF, AND METHOD OF IDENTIFYING SAME - A method and means for identifying the authenticity and the genuine nature of a solid or liquid bulk material, by incorporating a marking composition containing at least one trace ion into the said bulk material, whereby the total concentration of the incorporated trace ions in the market bulk material is chosen to be lower than the corresponding concentration of the same ions in standard sea water. The authenticity and the genuine nature or the adulteration level of the marked bulk material can be tested in-the-field using electrochemical sensors, and confirmed in the laboratory using a method such as atomic absorption spectroscopy, ion chromatography or mass spectrometry. | 02-23-2012 |
| 20110091979 | Tracing Coalbed Natural Gas - Coproduced Water Using Stable Isotopes of Carbon - Water collected in the area of coal beds has strongly positive δ | 04-21-2011 |
| 20110104811 | COATED AND FUNCTIONALIZED PARTICLES, POLYMER CONTAINING SAME, METHOD FOR PREPARING SAME AND USES THEREOF - The present invention relates to a particle comprising a core which comprises an oxide selected from rare earth oxides alone or in a mixture with metal oxides and which is coated with a layer of silica functionalized with a coupling agent comprising at least one chemical function soluble in a hydrophobic solvent, and to a composition comprising at least one such particle. The present invention likewise relates to the method for preparing same and to various uses thereof. | 05-05-2011 |
| 20100233816 | Tags Dispersible in Organic Solvents - Methods and compositions of matter are disclosed for creating tags such as SERS nanotags which are dispersible in an organic solvent. The tags are inherently hydrophilic and may be made dispersible in an organic solvent by associating the tag with an amphiphilic polymer. Alternatively, a tag may be associated with a surfactant. In another embodiment a tag having an encapsulant of a silicon containing material may be made dispersible in an organic solvent by modifying the encapsulant surface with a hydrophobic silane. In addition, a tag having an encapsulant of a silicon containing material may be modified by the esterification of the encapsulant with an alcohol. | 09-16-2010 |
| 20080254546 | A Cyanine-based probe\tag-peptide pair for fluorescence protein imaging and fluorescence protein imaging methods - A molecular probe comprises two arsenic atoms and at least one cyanine based moiety. A method of producing a molecular probe includes providing a molecule having a first formula, treating the molecule with HgOAc, and subsequently transmetallizing with AsCl | 10-16-2008 |
| 20080233654 | Tagging System - A method of tracing an aqueous liquid, particularly an aqueous urea used for addition to a selective catalytic reduction system to remove NOx from diesel exhaust includes adding a tracer comprising a pre-determined amount of a phenol to the liquid. The liquid can subsequently be identified by reacting a sample with a reagent containing a predetermined amount of 4-aminoantipyrine in the presence of an initiating compound such that the reaction between the reagent and a phenol in the liquid produces a chromophore and measuring the absorbance of the resulting solution of the chromophore. | 09-25-2008 |
