Patents by Inventor Ray D. Hudgins

Ray D. Hudgins 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).

  • Interior coating of gas well tubing
    Patent number: 5884700
    Abstract: A method and apparatus for treating the production tubing string of a flowing gas well is disclosed. The method includes introducing treatment fluid into the wellhead end of the production tubing string, allowing an applicator fall through the production tubing string thus applying a first coating of treatment fluid and retracting the applicator thus applying a second coating of the treatment fluid.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: March 23, 1999
    Assignee: Texaco Inc
    Inventors: Thomas H. Cook, Donald A. Branton, Ray D. Hudgins