Patents by Inventor Paul Wegfahrt

Paul Wegfahrt 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 determining vitamin B12, and reagents and kits therefor
    Publication number: 20060073536
    Abstract: Methods are described for the development of monoclonal antibodies to intrinsic factor and the application of said antibodies in the development of B12 immunoassays. In particular, antibodies are described that are capable of binding to intrinsic factor only in the absence of vitamin B12, and that are released from binding in the presence, and upon the binding, of vitamin B12 to intrinsic factor. Assays may be formatted such that either antibody or intrinsic factor is immobilized or labeled.
    Type: Application
    Filed: September 13, 2005
    Publication date: April 6, 2006
    Inventors: Karel Newman, Jane Schmidt, Paul Wegfahrt
  • Immunoassays for determining vitamin b12, and reagents and kits therefor
    Patent number: 6942977
    Abstract: Methods are described for the development of monoclonal antibodies to intrinsic factor and the application of said antibodies in the development of B12 immunoassays. In particular, antibodies are described that are capable of binding to intrinsic factor only in the absence of vitamin B12, and that are released from binding in the presence, and upon the binding, of vitamin B12 to intrinsic factor. Assays may be formatted such that either antibody or intrinsic factor is immobilized or labeled.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: September 13, 2005
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Karel Newman, Jane Schmidt, Paul Wegfahrt