Patents by Inventor Barbara R. Pitts

Barbara R. Pitts 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).

  • Method of applying guide markings to writing surfaces
    Patent number: 5698297
    Abstract: Improved method of applying guide markings to a writing surface such as posterboard. The guide markings are visually perceptible at a writing distance away from the posterboard, and substantially imperceptible at a viewing distance away from the--writing surface.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: December 16, 1997
    Assignee: Second Sight Enterprises, Inc.
    Inventors: Barbara R. Pitts, Mary R. Sarao
  • Posterboard
    Patent number: 5595829
    Abstract: Improved posterboard is formed from a rectangular posterboard having vertical side edges and horizontal top and bottom edges. Guide marking are applied to the posterbboard. The guide markings are visually perceptible at a writing distance away from the posterboard, and substantially imperceptible at a viewing distance length away from the posterboard.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: January 21, 1997
    Inventors: Barbara R. Pitts, Mary R. Sarao