Patents by Inventor Mark Richtman

Mark Richtman 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).

  • Road surface measuring device and method
    Patent number: 5774374
    Abstract: A light weight, bi-directional, computerized profilograph is disclosed. The bi-directional profilograph includes an odometer for measuring the horizontal movement of the profilograph in either a first direction or a second direction, and a road surface measuring device for measuring a road surface profile while the profilograph is traveling in either the first direction or the second direction. A computation device is also included for plotting the profile of the road surface versus the horizontal movement of the profilograph while the profilograph is traveling in either the first direction or the second direction.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: June 30, 1998
    Assignee: Surface Systems, Inc.
    Inventors: Dennis P. Scott, Mark Richtman, Larry D'Arcangelis