Patents by Inventor Joseph P. M. Westerburgen

Joseph P. M. Westerburgen 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).

  • Building element and coupling-pin for interconnecting such elements
    Patent number: 4823532
    Abstract: A generally rectangular building element has projections on the top surface and matching recesses on the bottom surface. Apertures are provided in the projections so that coupling pins can be used to lock together building elements that are assembled together.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: April 25, 1989
    Inventor: Joseph P. M. Westerburgen