Patents by Inventor Charles J. Dye

Charles J. Dye 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 toxicity oil composition and use thereof in drilling fluids
    Patent number: 4839096
    Abstract: This invention relates to a base oil composition suitable for use in drilling fluids, the composition comprising an oil component with an aromatic hydrocarbon content of less than 10% w/w and a polar activator which is an ether alcohol or a mixture of ether alcohols. The polar activators used herein mitigates the problems of toxicity, shearing, stability and gelation in drilling fluids containing conventional base oils.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: June 13, 1989
    Assignee: BP Chemicals Limited
    Inventors: Robert W. Dennis, Charles J. Dye, Alan Keasey