Patents by Inventor Marvin E. Hutchinson, Jr.

Marvin E. Hutchinson, Jr. 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 determination of phosphorous
    Patent number: 4009004
    Abstract: A method and reagent for the determination of inorganic phosphate in biological fluids by the reduction of molybdenumphosphate with a reducing agent, a non-ionic lineating surfactant, an acid, and optionally polyvinylpyrrolidone (PVP), wherein the sample used in the test method need not be protein free.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: February 22, 1977
    Inventor: Marvin E. Hutchinson, Jr.