Patents by Inventor Willie Roy Walker

Willie Roy Walker 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).

  • Urine stream directing device
    Patent number: D617449
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: June 8, 2010
    Inventor: Willie Roy Walker