Patents by Inventor Marc R. Vernet

Marc R. Vernet 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).

  • Lubricant oil additive
    Patent number: 5071576
    Abstract: A lubricant oil additive comprising a liquid vehicle and an overbased mixture of (A), a metal phenate, (B) a long chain metal alkyl aryl sulphonate and optionally, (C) a medium long chain metal alkyl aryl sulphonate shows an improved storage stability.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: December 10, 1991
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Marc R. Vernet, Graham W. Hamey