Patents by Inventor Francis Wah Nam Tang

Francis Wah Nam Tang 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).

  • Image display by projecting optical source onto a rotating or moving surface
    Publication number: 20090168023
    Abstract: The present invention discloses a method for presenting an advertisement by displaying an image on a rotational or moving surface by projecting an image onto a rotational or moving surface. Since the image is not affixed onto the rotational or moving surface, the projected image can be viewed as a stationary image as the projected lights are reflected from the rotating or moving surface. Advertisements or different kinds of images can be presented on rotating surfaces such as rotating tires or rotating engine blades.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 2, 2009
    Inventors: Francis Wah Nam Tang, Bo-In Lin