Patents by Inventor Lawrence E. Mark

Lawrence E. Mark 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).

  • Wall mover
    Patent number: 5401136
    Abstract: Lift-clamping device mounted on a movable base for the lifting and transporting of vertically oriented materials. A hinged arm device controlled by an operator using a jack linked to an adjustable clamp mechanism provides a means for lift and support of materials to be transported.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: March 28, 1995
    Inventor: Lawrence E. Mark