Patents by Inventor Trevor J. Holding

Trevor J. Holding 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).

  • Polymer solutions for use in oil recovery containing a complexing agent for multivalentions
    Patent number: 4265673
    Abstract: A process for preparing a polymer solution for use in "polymer based" oil recovery comprises adding to water the polymer in the form of an aqueous solution, a dry particulate solid or a suspension in a non-aqueous liquid, and also adding a complexing agent for multivalent ions and, where the solution so formed does not already contain an alkali metal salt, subsequently incorporating therein an alkali metal salt. The polymer may be a substantially cell-free microbial polysaccharide gum, a polyacrylamide or a cellulose derivative.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: May 5, 1981
    Assignee: Talres Development (N.A.) N.V.
    Inventors: Gary W. Pace, Trevor J. Holding