Patents by Inventor Rodger K. Johnson

Rodger K. 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: D252550
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 7, 1979
    Inventor: Rodger K. Johnson