Patents by Inventor Gregory A. Wemhoff

Gregory A. Wemhoff 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).

  • Flow immunosensor apparatus
    Patent number: 6245296
    Abstract: Target moiety is detected by (a) providing an antibody specific to the target, (b) saturating the binding sites of the antibody with a labelled form of the target, (c) flowing a liquid containing the target past the saturated antibody, thereby (d) allowing the target to displace the labelled antigen, and (e) detecting the displaced labelled antigen with a detector for the label.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: June 12, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frances S. Ligler, Bruce P. Gaber, Anne W. Kusterbeck, Gregory A. Wemhoff
  • Flow immunosensor method and apparatus
    Patent number: 5183740
    Abstract: A method of detecting a target moiety comprising the steps of (a) providing an antibody specific to the target, (b) saturating the binding sites of the antibody with a labelled form of the target, (c) flowing a liquid containing the target past the saturated antibody, thereby (d) allowing the target to displace the labelled antigen, and (e) detecting the displaced labelled antigen with a detector for the label.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: February 2, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frances S. Ligler, Gaber Bruce P., Anne W. Kusterbeck, Gregory A. Wemhoff
  • Ligand-label conjugates which contain polyoxoanions of sulfur or phosphorus
    Patent number: 5106762
    Abstract: Ligand-label conjugates which are an oligopeptide of 5 to 100 amino acid residues, bonded to a ligand or receptor, which contain a plurality of chemiluminescent or fluorescent labels and a plurality of polyoxoanions of sulfur or phosphorus are useful for immunoassays. Such conjugates are hydrophilic and exhibit very low nonspecific binding, thereby significantly increasing the signal to background ratio in immunoassays.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: April 21, 1992
    Assignee: Georgetown University
    Inventors: Reinhard Bredehorst, Frances S. Ligler, Anne W. Kusterbeck, Gregory A. Wemhoff, Carl-Wilhelm Vogel