Patents by Inventor Marc Parham

Marc Parham 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).

  • Assay of peroxidase enzyme activity
    Patent number: 4596770
    Abstract: The use of aqueous N-methyl pyrrolidone as a solvent for a substrate containing tetraalkyl benzidine chromogen and a peroxide in determining peroxidase enzyme activity provides increased stability of the substrate solution and decreased substrate drift in carrying out enzyme immunoassays or enzyme-linked immunosorbent assays.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: June 24, 1986
    Assignee: Travenol-Genetech Diagnostics
    Inventors: Marc Parham, William J. Warren