Patents by Inventor R. William Grimes

R. William Grimes 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).

  • Process for low mercury coal
    Patent number: 5403365
    Abstract: A process for producing low mercury coal during precombustion procedures by releasing mercury through discriminating mild heating that minimizes other burdensome constituents. Said mercury is recovered from the overhead gases by selective removal.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: April 4, 1995
    Assignee: Western Research Institute
    Inventors: Norman W. Merriam, R. William Grimes, Robert E. Tweed