Patents by Inventor Charles L. Demos

Charles L. Demos 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: D318839
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: August 6, 1991
    Inventors: Joseph G. Glenn, Charles L. Demos