Patents by Inventor John H. Lawson

John H. Lawson 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).

  • Balanced cleaning apparatus
    Patent number: 7698776
    Abstract: A balanced cleaning apparatus that advantageously contains a carrying handle, a dust pan and a bucket wherein the dustpan and the bucket are carried at the two ends of the carrying handle in a balanced position.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: April 20, 2010
    Inventor: John H. Lawson
  • Independently mounted fall prevention apparatus
    Patent number: 4399890
    Abstract: A flexible cable safety system for a fixed ladder is mounted adjacent to and independent of the ladder. This arrangement is useful for ladders which are not designed to withstand the loads imposed when a safety system arrests the fall of a workman.
    Type: Grant
    Filed: May 20, 1981
    Date of Patent: August 23, 1983
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Leroy R. Bartels, John H. Lawson, Paul L. King