Patents by Inventor Robert Campbell Clark

Robert Campbell Clark 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).

  • Accessory device for attachment to a firearm
    Patent number: 9291430
    Abstract: An accessory device for attachment to a firearm may include a device body having a light source and a biasing member extending from the device body through an aperture of a rail clip. The biasing member has a distal end shaped for insertion into a firearm slot, and the device body has an anti-rotation feature that prevents the body from rotating about the biasing member with respect to the rail clip when the distal end is inserted in the firearm slot.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 22, 2016
    Assignee: SPECIALIZED TACTICAL SYSTEMS
    Inventor: Robert Campbell Clark
  • Light with firearm mounting bracket
    Patent number: D701279
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 18, 2014
    Assignee: Specialized Tactical Systems
    Inventor: Robert Campbell Clark
  • Spiked muzzle brake for firearm
    Patent number: D783758
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 11, 2017
    Inventor: Robert Campbell Clark