Patents by Inventor Donald C. Boylance

Donald C. Boylance 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 solids and water from petroleum crudes
    Patent number: 4477337
    Abstract: Petroleum crudes, particularly heavy oil crudes produced by thermal or other enhanced recovery procedures, are treated to break the water-in-oil emulsion and reduce the BS&W content by use of additives, advantageously ammonium bisulfite, which act upon inorganic sulfur contained in the crude.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: October 16, 1984
    Assignee: Husky Oil Operations Ltd.
    Inventors: Clifford P. Ronden, Donald C. Boylance