Patents by Inventor Walter S. Dallas

Walter S. Dallas 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).

  • Employing strains of E. coli expressing non-indigenous adhesins and toxoids of E. coli
    Patent number: 5137721
    Abstract: A vaccine is described for prevention of gastro-enteric disease caused in a mammalian species by a pathogenic microorganism. The vaccine comprises a non-pathogenic microorganism strain containing stable replicative plasmids, each having one or more genes non-indigenous to the plasmid. The non-indigenous genes are either genes for an adhesin necessary for adherence of the pathogenic microorganism in the mammalian species or are genes for toxoids of toxins causative of the disease. Both types of genes may also be included in the same plasmid.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: August 11, 1992
    Assignee: Cetus Corporation
    Inventor: Walter S. Dallas