Patents by Inventor Paul Hutsell Maupin

Paul Hutsell Maupin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • One-step test for aspartate aminotransferase
    Patent number: 5834226
    Abstract: Novel assay kits and methods are described for the detection and determination of the severity of disease conditions associated with elevated levels of aspartate aminotransferase (AST). The AST levels are determined by reaction of the AST with cysteine sulfinic acid (CSA) substrate in the presence of a sulfite-reactive dye compound that is substantially nonreactive with AST or CSA, such as a triarylmethine dye. Sulfite ion formed by the reaction of AST with CSA causes a calorimetric indication of AST that can be related to a predetermined stage of disease.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: November 10, 1998
    Assignee: Xytronyx, Inc.
    Inventor: Paul Hutsell Maupin