Patents by Inventor Stephen L. Heiden

Stephen L. Heiden 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: 5233375
    Abstract: A logo projector is provided which consists of a flashlight that can be held in a hand of a person using said logo projector. A bezel is affixed to the flashlight so that when the flashlight is turned on a beam of light will pass through the bezel. An elongated opaque tube is affixed at a first end to the bezel. A focusing lens is affixed to a second end of the elongated opaque tube. A transparent member having an opaque logo on the center of the back surface thereof is also provided. The transparent member is affixed to the first end of the elongated opaque tube adjacent the bezel so that when the flashlight is turned on the beam of light passing through will cause an image of a silhouette of the opaque logo from the transparent member to be projected onto a distant surface.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: August 3, 1993
    Inventors: Charles A. Williams, Stephen L. Heiden