Patents by Inventor John A. Toups, Jr.

John A. Toups, Jr. 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).

  • Environmentally safe annular fluid
    Patent number: 5607901
    Abstract: An environmentally acceptable, thermally insulating annular fluid comprised of a liquid which is non-aqueous, non-corrosive, and thermally insulating, a clay gellant, and a clay dispersant. A preferred packer fluid includes an ester originated from a vegetable or animal oil as at least a major portion of the liquid phase.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: March 4, 1997
    Assignee: BP Exploration & Oil, Inc.
    Inventors: John A. Toups, Jr., David B. Young, Majeed H. Yousif, B. C. Smolen, Jonathan Holt