Patents by Inventor Roger D. Joyce

Roger D. Joyce 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).

  • Breach plug for muzzleloading rifle
    Patent number: 7526888
    Abstract: The present invention provides a two piece breech plug for converting a breech loading firearm to a muzzle loading firearm. The invention includes a forward breech plug having a powder chamber and a flash passage and a nesting rear breech plug having a primer pocket therein for accepting a primer and a flash passage that generally aligns with the flash passage of the forward breech plug.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: May 5, 2009
    Inventor: Roger D. Joyce