Patents by Inventor Catherine E. Villars

Catherine E. Villars 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).

  • High level expression and facile purification of proteins, peptides and conjugates for immunization, purification and detection applications
    Patent number: 6764689
    Abstract: A process for producing and purifying peptides and for producing peptide/protein antigens for antibody production is described. The process utilizes fusion proteins and specifically fusion proteins in which the fusion protein carrier segment includes an amino acid sequence at least about 65 amino acids long and in which the amino acid sequence does not contain negative or positive charged side chains of amino acids.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: July 20, 2004
    Assignee: Promega Corporation
    Inventors: Mark W. Knuth, Mary Haak-Frendscho, John W. Shultz, Scott A. Lesley, Catherine E. Villars
  • High level expression and facile purification of proteins, peptides and conjugates for immunization, purification and detection applications
    Patent number: 6069230
    Abstract: A process for pro and purifying peptides and for producing peptide/protein antigens for antibody production is described. The process utilizes fusion proteins and specifically fusion proteins in which the fusion protein carrier segment includes an amino acid sequence at least about 65 amino acids long and in which the amino acid sequence does not contain negative or positive charged side chains of amino acids.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: May 30, 2000
    Assignee: Promega Corporation
    Inventors: Mark W. Knuth, Mary Haak-Frendscho, John W. Shultz, Scott A. Lesley, Catherine E. Villars
  • High level expression and facile purification of proteins, peptides and conjugates for immunization, purification and detection applications
    Patent number: 5989554
    Abstract: A process for producing and purifying peptides and for producing peptide/protein antigens for antibody production is described. The process utilizes fusion proteins and specifically fusion proteins in which the fusion protein carrier segment includes an amino acid sequence at least about 65 amino acids long and in which the amino acid sequence does not contain negative or positive charged side chains of amino acids.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: November 23, 1999
    Assignee: Promega Corporation
    Inventors: Mark W. Knuth, Mary Haak-Frendscho, John W. Shultz, Scott A. Lesley, Catherine E. Villars