Patents by Inventor Patrick L. Henderson

Patrick L. Henderson 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 determination of glycols and polyglycols in drilling fluid filtrates
    Patent number: 5627076
    Abstract: An apparatus and method is presented for the determination of water soluble glycols and polyglycols (polyalkoxylates). The apparatus and method are particularly suited for the on-site quantitation of glycols and polyglycols in aqueous drilling fluids.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: May 6, 1997
    Assignee: Baker Hughes Incorporated
    Inventors: Nyal S. Walker, Patrick L. Henderson