Patents by Inventor Leroy Lloyd Carney

Leroy Lloyd Carney 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).

  • Drilling fluid process
    Patent number: 5697458
    Abstract: The use of a water external micellar dispersion as a drilling fluid for rotary and horizontal drilling operations wherein the drilling fluid contains more than 50% oil in the internal phase, improved high temperature stability, high yield points, low gel strengths, and ultra low fluid loss.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: December 16, 1997
    Inventor: Leroy Lloyd Carney