Patents by Inventor Michael D. Duncan

Michael D. Duncan 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).

  • Real time suspended particle monitor
    Patent number: 6049381
    Abstract: A method and apparatus for real-time monitoring of particulates in a fluid. The fluid is illuminated, and an image formed of the interior of the fluid. The image is then detected, and processed to determine the size, shape, etc. of particulates within the fluid.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: April 11, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John F. Reintjes, Michael D. Duncan, Rita Mahon, Lawrence L. Tankersley, Paul L. Howard, Martin Chamberlain, Thomas McKenna
  • Time-gated imaging through dense-scattering materials using stimulated Raman amplification
    Patent number: 5275168
    Abstract: An apparatus for the time-gated optical examination of objects that are p of, embedded in or viewed through dense scattering materials is disclosed.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: January 4, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John F. Reintjes, Michael D. Duncan, Rita Mahon, Lawrence L. Tankersley, Ronald W. Waynant, Mark Bashkansky