Patents by Inventor Delbert R. Johnson

Delbert R. Johnson 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: D633172
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: February 22, 2011
    Inventor: Delbert R. Johnson