Patents by Inventor Ernst G. Gunnarsson

Ernst G. Gunnarsson 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).

  • Automatic feeder for livestock
    Patent number: D257794
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: January 6, 1981
    Inventor: Ernst G. Gunnarsson