Patents by Inventor Richard W. Keatch

Richard W. Keatch 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).

  • Method for removing oilfield mineral scale from pipes and tubing
    Patent number: 8074332
    Abstract: A method for removing mineral scale from tubing is disclosed. The method may include the steps of making a first longitudinal cut along a length of the tubing, making a second longitudinal cut along a length of tubing, and removing a plurality of sections of tubing, wherein the sections of tubing are defined by the first and second longitudinal cuts.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 13, 2011
    Assignees: M-I Production Chemicals UK Limited, Oilfield Mineral Solutions Limited
    Inventors: Richard W. Keatch, Simon K. Ray