Patents by Inventor John P. Gangl, Jr.

John P. Gangl, Jr. 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).

  • Recoil reducer for firearms
    Patent number: D449668
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: October 23, 2001
    Inventor: John P. Gangl, Jr.
  • Firearm muzzle brake
    Patent number: D358861
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: May 30, 1995
    Inventor: John P. Gangl, Jr.
  • Front sight for firearm
    Patent number: D404788
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: January 26, 1999
    Inventor: John P. Gangl, Jr.