Patents by Inventor Debra B. Alexander

Debra B. Alexander 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).

  • Immunoassays for prostate specific antigen
    Patent number: 5672480
    Abstract: The present invention relates to the field of cancer immunoassay. Specifically, a new immunoassay method for prostate specific antigen (PSA) is presented. Also presented is a complex which resembles a complex of PSA and .alpha.-antichymotrypsin (ACT) that can be used as a calibrator or control in an immunoassay for PSA. Further presented is a method for fractionating polyclonal antibodies, to PSA, into those which bind epitopes that are masked by the binding of PSA to ACT and those which do not bind such epitopes.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: September 30, 1997
    Assignee: Abbott Laboratories
    Inventors: Barry L. Dowell, Debra B. Alexander, Susan B. O'Morchoe, Carol A. King, Allan H. Smith
  • Immunoassays for prostate specific antigen
    Patent number: 5599677
    Abstract: The present invention relates to the field of cancer immunoassay. Specifically, a new immunoassay method for prostate specific antigen (PSA) is presented. Also presented is a complex which resembles a complex of PSA and .alpha.-antichymotrypsin (ACT) that can be used as a calibrator or control in an immunoassay for PSA. Further presented is a method for fractionating polyclonal antibodies, to PSA, into those which bind epitopes that are masked by the binding of PSA to ACT and those which do not bind such epitopes.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: February 4, 1997
    Assignee: Abbott Laboratories
    Inventors: Barry L. Dowell, Carol A. King, Debra B. Alexander, Allan H. Smith, Susan B. O'Morchoe