Patents by Inventor Kenneth E. Cleaver

Kenneth E. Cleaver 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).

  • Reagent and method for determining total calcium in body fluids
    Patent number: 3934977
    Abstract: A colorimetric determination of total calcium in serum and other body fluids comprising the steps of mixing the sample of body fluid with a liquid reagent consisting of 2,7-bis-(4 chloro-2-phosphonobenzeneazo)-1,8-dihydroxynapthalene-3,6-disulfonic acid, commonly known as chlorophosphonazo III, in a buffer system at pH 5.0 to 5.5, and thereafter spectrophotometrically measuring the level of color development. Potassium hydrogen phthalate is disclosed as a component of the buffer system.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: January 27, 1976
    Assignee: American Hospital Supply Corporation
    Inventor: Kenneth E. Cleaver