Patents by Inventor Lou E. Smith

Lou E. Smith 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).

  • Product presenting different artistic images in the presence and absence of ambient light and fabrication method therefor
    Patent number: 5084309
    Abstract: The invention includes a product and a fabrication method for generating one image in the presence of ambient light and a second different image in the absence of ambient light. This invention can use phosphorescent material to form one of the images. This invention is particularly related to puzzles or novelty artwork for children.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: January 28, 1992
    Assignees: Timothy J. Martin, Russell C. Cline
    Inventors: Lou E. Smith, David W. Box