Patents by Inventor Robert A. Ambrosio

Robert A. Ambrosio 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).

  • Patent number: D312172
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: November 20, 1990
    Inventor: Robert A. Ambrosio