Patents by Inventor Martin L. Boehringer

Martin L. Boehringer 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).

  • Wrench assembly
    Patent number: 7117766
    Abstract: A wrench assembly includes a plate that has a first side, a second side, a first end edge, a second end edge, a first side edge and a second side edge. The plate has an end opening therein extending into the first side and outwardly of the second side. The end opening is elongated and has a shape configured for engaging the wing head. The end opening is positioned nearer to the first end edge than the second end edge. A wing head, attached to a drain plug, may be engaged with and rotated by the plate.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: October 10, 2006
    Inventor: Martin L. Boehringer