Patents by Inventor George Coon

George Coon 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).

  • Retractable felt-tipped pen
    Patent number: 6213661
    Abstract: A retractable felt-tipped pen includes first and second cylindrical members movable with respect to each other and a pen nib connected to one of the first and second cylinders. A flexible membrane is connected to at least one of the first and second tubes and rotates inward on itself to engage the pen nib in a closed condition to seal the pen nib and rotates outward from itself to disengage the pen nib for writing and/or the membrane simply expands without rotation.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: April 10, 2001
    Inventor: George Coon