Patents by Inventor Marc R. M. Vernet

Marc R. M. 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).

  • Overbased metal sulphonate composition
    Patent number: 5137648
    Abstract: A new overbased metal sulphonate composition comprises a mixture of (A) at least one long chain alkyl aryl sulphonate containing an average number of at least 40 carbon atoms in the alkyl residue and (B) at least one medium long chain alkyl aryl sulphonate containing an average number of 10 to 33 carbon atoms in the alkyl residue. The composition is useful as an additive to lubricant oil.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: August 11, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John F. Marsh, Marc R. M. Vernet, Graham W. Hamey
  • Overbased metal sulphonate composition
    Patent number: 5112506
    Abstract: A new overbased metal sulphonate composition comprises a mixture of (A) at least one long chain alkyl aryl sulphonate containing an average number of at least 40 carbon atoms in the alkyl residue and (B) at least one medium long chain alkyl aryl sulphonate containing an average number of 10 to 33 carbon atoms in the alkyl residue. The composition is useful as an additive to lubricant oil.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: May 12, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John F. Marsh, Marc R. M. Vernet, Graham W. Hamey
  • Overbased magnesium sulphonate composition
    Patent number: 5089155
    Abstract: Overbased magnesium sulphonates having increased resistance to interactions are prepared from sulphonic acids prepared from alkylates with long and medium chain alkyl groups. Compositions comprising such overbased magnesium sulphonate are particularly suitable for use in combination with high molecular weight dispersants and/or friction modifiers. Stable sediment-free lubricating oil compositions (including lubricants and concentrates therefor) can be prepared which can meet SG quality and the Tier II fuel economy requirements.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: February 18, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John F. Marsh, Marc R. M. Vernet, Graham W. Hamey