Patents by Inventor William F. Darby

William F. Darby 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).

  • Solid fuel and method of manufacture thereof
    Patent number: 4596584
    Abstract: A solid fuel consists of a mixture of one or more paper products and one or more oil products. Preferred mixtures one waste paper with fuel oil, waste oil, petroleum coke or refinery bottoms. A binding agent and/or an amount of water may be added to the above constituents. A method of making said solid fuel is also submitted.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: June 24, 1986
    Inventor: William F. Darby