Patents by Inventor Margaret J. Duncan

Margaret J. Duncan 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).

  • Supersecreting mutants of Saccharomyces cerevisiae
    Patent number: 5057416
    Abstract: A screening procedure is provided which utilizes a milk clotting assay for selecting supersecreting yeast cells for obtaining high yields of desired polypeptide products.Supersecreting yeast cells are provided as filed with American Type Culture Collection.Final polypeptide products are obtained from mutant yeast strains which have been screened as to secreting properties with supersecreters then cultured to obtain high yields.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: October 15, 1991
    Assignee: Collaborative Research, Inc.
    Inventors: Robert A. Smith, Margaret J. Duncan