Patents by Inventor Ralph N. Heineman

Ralph N. Heineman 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).

  • Turkey call device
    Patent number: 5503585
    Abstract: The present invention is an improved box game call device comprising a multiple call registering scraper block, having an edge engaging striker affixed within a sound enhancement chamber. The scraper block is mounted within an elongate sound resonance box and is arranged for the repeatable generation of multiple distinct game attracting sounds.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 2, 1996
    Assignee: Donna L. Heineman
    Inventor: Ralph N. Heineman