Patents by Inventor Barker Fred

Barker Fred 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).

  • Patent number: 7416359
    Abstract: An improvement to a writing instrument with stylus, a pocket clip and an integrated letter-opening blade. The improvement consists of locating the letter-opening blade in the pocket clip of the pen. The blade is prevented from cutting the pocket of the user due to a blade protector that is mechanically linked to the mechanism that extends and retracts with the marking or writing tip. In an alternate embodiment, the blade is located on the opposite side of the pocket clip. The extending and retracting mechanism can be a variety of types including twist, press, sliding. The stylus provides input to a PDA, touch screen or other tactile input device. Another embodiment includes a letter opener with a stylus.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: August 26, 2008
    Inventor: Barker Fred
  • Publication number: 20060193677
    Abstract: An improvement to a writing instrument with stylus, a pocket clip and an integrated letter-opening blade. The improvement consists of locating the letter-opening blade in the pocket clip of the pen. The blade is prevented from cutting the pocket of the user due to a blade protector that is mechanically linked to the mechanism that extends and retracts with the marking or writing tip. In an alternate embodiment, the blade is located on the opposite side of the pocket clip. The extending and retracting mechanism can be a variety of types including twist, press, sliding. The stylus provides input to a PDA, touch screen or other tactile input device. Another embodiment includes a letter opener with a stylus.
    Type: Application
    Filed: December 10, 2004
    Publication date: August 31, 2006
    Inventor: Barker Fred