Patents by Inventor James P. Simmonds

James P. Simmonds 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).

  • Diesel fuel compositions
    Patent number: 5575823
    Abstract: Heavy diesel fuels, especially those containing sulphur and intended for marine or railroad use, are improved by incorporation therein of a combination of a cyclomatic manganese tricarbonyl and an ashless dispersant and optionally an antioxidant. Diesel fuels so modified show improved combustion characteristics and fuel economy.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: November 19, 1996
    Assignee: Ethyl Petroleum Additives Limited
    Inventors: Graeme M. Wallace, James P. Simmonds