Patents by Inventor Douglas William Hull

Douglas William Hull 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).

  • Corner extrusion
    Patent number: D582570
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: December 9, 2008
    Assignee: Impressive Basement Systems, LLC
    Inventor: Douglas William Hull
  • T-wall extrusion
    Patent number: D583071
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: December 16, 2008
    Assignee: Impressive Basement Systems, LLC
    Inventor: Douglas William Hull