Patents by Inventor Walter L Roach

Walter L Roach 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: D402718
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: December 15, 1998
    Inventors: Walter L Roach, Carolyn J Roach