Patents by Inventor James Drew Laughlin

James Drew Laughlin 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).

  • Low lead aviation gasoline blend
    Patent number: 6451075
    Abstract: A particularly useful low lead aviation gasoline fuel blend complies with all requirements of ASTM D 910 and includes 67.0 volume % isooctane, 18.0 volume % xylene, 12.0 volume % isopentane, 3.0 volume % isobutane and 0.47 mL/gal of tetraethyl lead. Another useful low lead aviation gasoline fuel blend which complies with all requirements of ASTM D 910 except for oxygenate content includes 60.0 volume % isooctane, 15.0 volume % xylene, 14.0 volume % methyl t-butyl ether, 8.0 volume % isopentane, 3.0 volume % isobutane and 0.2 mL/gal of tetraethyl lead. The isooctane used in either case is a purified isooctane prepared either by fractionating a crude DIB material and hydrogenating the fractionated material or hydrogenating the crude DIB material and fractionating the hydrogenated material.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: September 17, 2002
    Assignee: Texas Petrochemicals LP
    Inventors: Robert A. Schoppe, James Drew Laughlin