Patents by Inventor Thomas Lamberson

Thomas Lamberson 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).

  • Step stool
    Patent number: 6843347
    Abstract: A multipurpose step stool includes two substantially parallel, congruent, triangular side support members. The triangular side support members each include first, second, and third resting edges adapted to contact a supporting surface such as a floor. The first treads are oriented parallel to the first resting edges, the second treads are oriented parallel to the second resting edges, and the platform is oriented parallel to the third resting edges.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: January 18, 2005
    Assignee: RDL Investments, LLC
    Inventors: Thomas Lamberson, Michael R. Webb, Richard C. Kochawski, Gene Gladkov, Robert D. Heckel, II