Patents by Inventor Steven E. Donnachie

Steven E. Donnachie 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).

  • Synthetic lubricant composition and process
    Patent number: 7592411
    Abstract: A liquid polymer suitable for use as a lubricant base oil is produced by polymerizing ethylene and at least one alpha-olefin using a metallocene catalyst to provide a polymer which is then isomerized and hydrogenated to produce the liquid polymer.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: September 22, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Margaret M. Wu, Steven P. Rucker, Richard T. Spissell, Steven E. Donnachie