Patents by Inventor John G. Haddad

John G. Haddad 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).

  • Method of assay for vitamin D metabolites
    Patent number: 4585741
    Abstract: The vitamin D metabolite, calcitriol, is determined in blood serum by radioimmunoassay employing monoclonal antibodies in which calcitroic acid serves as the immunogen.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: April 29, 1986
    Inventors: Brian L. Clevinger, John G. Haddad, Steven L. Teitelbaum