Patents by Inventor Robert L. Stilwell

Robert L. Stilwell 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).

  • Device for training retriever dogs
    Patent number: 4154013
    Abstract: A device for training retriever dogs comprising a launcher, having a pistol grip, from which a plurality of projectiles to be retrieved by a dog are sequentially launched by a plurality of explosive propellant charges automatically and sequentially indexed into proper position for discharge.
    Type: Grant
    Filed: March 24, 1978
    Date of Patent: May 15, 1979
    Inventor: Robert L. Stilwell