Patents by Inventor Steven W. Barker

Steven W. Barker 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: D313899
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: January 22, 1991
    Assignee: Summers Group
    Inventors: Steven W. Barker, Richard E. McCathren