Patents by Inventor Guy E. McFarland

Guy E. McFarland 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).

  • Refractometer
    Patent number: D511980
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: November 29, 2005
    Inventors: Guy E. McFarland, Paul J. Wendling, Mui Hing Hok