Patents by Inventor Roger D. Witham

Roger D. Witham 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).

  • Automobile muffler tip
    Patent number: D465444
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: November 12, 2002
    Inventor: Roger D. Witham