Patents by Inventor William V. Chalupa

William V. Chalupa 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).

  • Methods and compositions for improving feed efficiency in ruminants using dithiooxamide
    Patent number: 3949090
    Abstract: Compositions and methods for improving the feed efficiency of ruminant animals comprise using dithiooxamide as an active ingredient. Dithiooxamide inhibits both methanogenesis and microbial degradation of amino acids in the rumen.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: April 6, 1976
    Assignee: SmithKline Corporation
    Inventors: William V. Chalupa, Roger C. Parish