Patents by Inventor Frank J. Freestone

Frank J. Freestone 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).

  • Photomicrographic system for flowing fluids
    Patent number: 4283128
    Abstract: A photomicrographic system for measuring the number, size distribution and movement rate of foreign matter, e.g.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: August 11, 1981
    Assignee: The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Raymond A. Meyer, Frank J. Freestone