Class 436/99 - Uric acid

Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Subject matter wherein the specie of interest is triketopurine.
No. of patents: 29
Last issue date: 08/14/2007

Number	Title	Issue Date
7255835	Single pass attenuated total reflection fourier transform infrared microscopy apparatus and method for identifying protein secondary structure, surface charge and binding affinity Apparatus and method for acquiring an infrared spectrum of a sample having or suspected to have an amide I band, an amide II band, an amide III band, an amide A band, an OH stretching region or a combination thereof. A representative method includes providing a samp...	08/14/2007
7198955	Method and apparatus for measurement of blood substitutes A method is disclosed whereby the concentration of a blood substitute, such as cross-linked hemoglobin, in a serum or plasma specimen is rapidly and accurately identified and quantified. The method further takes the measured concentration of the blood substitute and...	04/03/2007
6699720	Interference-eliminating membranes, test strips, kits and methods for use in uric acid assay The present invention relates to an interference-eliminating membrane for use in detecting uric acid in a sample, comprising a compound for inhibiting or shading uric acid interfering substances, or derivatives thereof, and a carrier having an absorption ...	03/02/2004
6020205	Determination of intracellular antioxidant levels A method of determining intracellular levels of water-soluble and fat-soluble antioxidants. Peripheral blood mononuclear cell lysates are prepared from an individual and analyzed by HPLC, either directly or after extraction with organic solvents to extrac...	02/01/2000
6004770	Sample presentation apparatus for mass spectrometry A sample presentation device, with a surface-bound complex including at least one molecule which chemically modifies a biomolecule, is prepared and exposed to a biomolecule. The molecular weights of the chemically modified biomolecule is then determined b...	12/21/1999
5807687	Detection of CNS disease Techniques for the detection of disease of the central nervous system, pacularly of bovine spongiform encephalopathy or "mad cow disease", scrapie and related states, are provided based upon the detection of a factor present in the urine of affected anim...	09/15/1998
5798267	Method for determining alcohol consumption rates A method for assessing or determining alcohol consumption rates including using a blood specimen from a human subject to develop an individual blood constituent panel; comparing the individual panel with a reference blood constituent panel to provide cate...	08/25/1998
5756359	Decreased interference redox detection system The present invention relates to reagents and processes for the preparation of diagnostics which use a chromogenic redox detection system and whose chromogenic redox detection system essentially remains unaffected by interference from reducing. compounds ...	05/26/1998
5702955	Ascorbate resistant detection of hydrogen peroxide The present invention is a method for the detection of hydrogen peroxide in biological fluids or an aqueous solution which involves contacting the solution with an oxidation-reduction indicator and a transition metal complex. The transition metal complex ...	12/30/1997
5683656	Decreased interference redox detection device The present invention relates to reagents and processes for the preparation of diagnostics which use a chromogenic redox detection system and whose chromogenic redox detection system essentially remains unaffected by interference from reducing compounds i...	11/04/1997
5658999	Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax Described herein are propylene waxes and a production process thereof. The waxes are each produced by polymerizing propylene in a reaction vessel while using a solid catalyst in the presence or absence of an organoaluminum compound. A hydrogen partial pre...	08/19/1997
5589400	Method of distributing material onto a microscope slide of a large cytology sample chamber The method of distributing biological material suspended in a liquid sample comprises the steps of directing the liquid sample into a centrifuge sample chamber along a tortuous path of vertically spaced surfaces in the chamber, each of the surfaces being ...	12/31/1996
5561067	Method of determining the severity of a lithogenesis condition and a composition of calculi forming salts The present method for evaluating the extent of a lithogenesis process intensity and for determining the composition of lithogenic urate salts in urolithiasis resides in adding an aqueous protein solution to a urine sample in a ratio of 9:1, 7:1 or 5:1, r...	10/01/1996
5480807	Process for assessing the biological age of a tissue The present invention is directed to use of an imidazo [4,5b] pyridinium molecule composed of a lysine and an arginine residue crosslinked with a pentose sugar for assessing the biological age of a tissue....	01/02/1996
5470758	Large cytology sample chamber for distributing material onto a microscope slide A cytology chamber comprises a sample holding portion, a funnel through which the fluid sample is directed into the holding portion of the chamber, a generally flat, solid flange member defining an upright support surface and having an opening through the...	11/28/1995
4396714	N-Sulfoalkylaniline derivatives N-sulfoalkylaniline derivatives in which at least one sulfoalkyl of 2 to 4 carbon atoms is attached to the nitrogen atom which are useful as dyestuff forming substances, a composition for determining the presence of peroxides using such compounds and the ...	08/02/1983
4348208	Uric acid assay and reagent system therefor A diagnostic assay and reagent system for the determination of uric acid directly on a non-deproteinized sample of a biological fluid using an alkaline phosphotungstate reduction reaction in the presence of at least one organic sulfhydryl-containing compo...	09/07/1982
4291121	Bilirubin-resistant determination of uric acid and cholesterol A composition, test device, method of making a test device and process for bilirubin-resistant determination of an analyte selected from uric acid or cholesterol in a fluid sample are disclosed. More particularly, the composition is of the type comprising...	09/22/1981
4269938	Assay of peroxidatively active materials A new peroxidase assay for substances demonstrating peroxidative activity is described which is based on the peroxidase catalyzed oxidation of dichlorofluorescin to dichlorofluorescein by peroxide. The dichlorofluorescin is formed from diacetyldichloroflu...	05/26/1981
4234313	Device and method for quantitative uric acid testing A testing composition provided in test-strip form, which comprises a predetermined amount of a colored indicator on a solid, inert support, the indicator being responsive to the material being tested in such a manner it loses its color in a direct proport...	11/18/1980
4212844	Rapid diagnostic composition for the determination of uric acid in body fluids Rapid diagnostic compositions and methods for the determination of uric acid in body fluids by inversion colorimetry, wherein the indicator used is a radical of the general formula: ##STR1## in which R is a lower alkyl radical and Me is an alkali met...	07/15/1980
4181500	Chemical testing systems A test system and method is described for determining if a material (e.g. uric acid) oxidizable by iodine is present in an aqueous fluid in an amount equal to or greater than a predetermined amount and which includes a dry solid iodine indicator and a dry...	01/01/1980
4101648	Composition for carrying out a uric acid load test The invention relates to a composition for carrying out a uric acid load t for the differential diagnosis of diseases of the purine metabolism. The composition comprises a mixture of adenine and guanine, preferably in equal quantities, incorporated in a ...	07/18/1978
4095948	Determination of uric acid An automated method for the determination of uric acid in biological fluids utilizing a benzidine or diphenyline and peroxidase as the color indicator....	06/20/1978
4089747	Compositions for the detection of hydrogen peroxide There are disclosed buffered compositions for detecting either hydrogen peroxide or a substance having peroxidative activity by the catalytic oxidation of a dye-providing material by hydrogen peroxide in the presence of the material having peroxidative ac...	05/16/1978
4072627	Uric acid determination An aqueous solution useful in connection with a redox type spectrophotometric or colorimetric determination of uric acid in a biologic fluid is disclosed. The solution contains either a multivalent metallic ion reducible to a lower valence state by uric a...	02/07/1978
4059407	Disposable chemical indicators A disposable indicator is disclosed which is useful for the measurement of ketones, proteins including albumin and uric acid in biological fluids. The instrument registers the concentration of substance in a given biological fluid with indicia which are d...	11/22/1977
4042329	Method and device for detecting cholesterol A disposable indicator which is useful for the measurement of chemical substances in biological fluids. The instrument registers the concentration of substance in a given biological fluid with indicia which are directly readable in a convenient notation s...	08/16/1977
3997470	Surfactant containing reagent formulations for assaying biological specimens and methods of preparing same A solid, water-soluble substantially anhydrous, storage-stable reagent formulation for use in conducting a clinical diagnostic test on a biological specimen is provided. The reagent formulation comprises a mixture containing a reagent capable of participa...	12/14/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 436/99 - Uric acid