Patents by Inventor Heather A. Boucher Ashe

Heather A. Boucher Ashe 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).

  • Process to manufacture high viscosity hydrocracked base oils
    Publication number: 20040245147
    Abstract: A process to produce base oils through the use of fractionation, solvent extraction, dewaxing, and hydrofinishing
    Type: Application
    Filed: April 16, 2004
    Publication date: December 9, 2004
    Inventor: Heather A. Boucher Ashe
  • Co-extraction of a hydrocarbon material and extract obtained by solvent extraction of a second hydrotreated material
    Publication number: 20040168955
    Abstract: The present invention relates to a process to increase extraction yields and improve dewaxing performance of a lube boiling range stream. More particularly, the present invention is a process to produce at least one base oil by contacting a light lube stream with a polar solvent in a solvent extraction zone, then mixing the resulting extract with a second, heavier lube stream, extracting the mixture with a polar solvent, and dewaxing the resultant raffinate.
    Type: Application
    Filed: November 25, 2003
    Publication date: September 2, 2004
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Heather A. Boucher Ashe, Ronald J. Taylor