The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
May. 29, 1990
Arthur L Lau, Granger, IN (US);
James H Pendergrass, South Bend, IN (US);
Carrie A Ritucci, Elkhart, IN (US);
Miles Inc., Elkhart, IN (US);
Abstract
A test device and method of determining the presence and concentration of proteins in a test sample are disclosed. The test device includes a test pad comprising a new and improved carrier matrix incorporating an indicator reagent composition capable of interacting with proteins to produce a detectable or measurable response. The new and improved carrier matrix of the test pad comprises a film, membrane or layer of a polymerized urethane-based compound, a water insoluble inorganic compound and an insoluble organic compound. The carrier matrix provides improved color resolution and increased sensitivity to proteins in dry phase test strip assays, thereby achieving an accurate and trustworthy protein assay of a liquid test sample, such as urine, having a protein concentration as low as about 5 mg/dL. Also disclosed is a method of making the test device.