Patents by Inventor William Anthony Eisenhardt, Jr.

William Anthony Eisenhardt, 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).

  • Analytical or clinical derivatives, tagged derivatives and methods of analysis using such derivatives
    Patent number: 4115539
    Abstract: Novel isocyanates such as, for example, blocked L-tyrosine methyl ester isocyanate, are reacted with compounds of biological, clinical interest or the like such as, for example, digoxin, to form derivatives receptive to tagging, as by radiolabeling. The tagged derivatives may then be employed to determine the presence of the compound of interest in nanomolar or even picomolar amounts by using clinical analysis techniques such as radioimmunoassay.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: September 19, 1978
    Assignee: Union Carbide Corporation
    Inventors: William Anthony Eisenhardt, Jr., Eddie Hedaya, Spyros Theodoropulos