Patents by Inventor Donald J. Walsh, Jr.

Donald J. Walsh, 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).

  • Firearm silencer and flash attenuator
    Patent number: 5136923
    Abstract: A firearm sound suppressor which includes an outer housing, an interior perforated tube located within the outer housing, and spacing between the outer housing and interior perforated tube, and method of making. The sound suppressor is adapted to be mounted on a firearm.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: August 11, 1992
    Inventor: Donald J. Walsh, Jr.