Patents by Inventor Perla Duchesne

Perla Duchesne 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).

  • Lubricating oil with enhanced protection against wear and corrosion
    Patent number: 8709987
    Abstract: Provided is a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) one or more borated alkaline earth metal alkyltoluene sulfonate detergents; wherein the lubricating oil composition comprises no more than about 0.20 wt. % of phosphorus and no more than about 0.50 wt. % of sulfur.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: April 29, 2014
    Assignees: Chevron Oronite S.A., Chevron Oronite Company LLC
    Inventors: Perla Duchesne, John McDonald, Sinquin Gilles, Pierre Tequi
  • LUBRICATING OIL WITH ENHANCED PROTECTION AGAINST WEAR AND CORROSION
    Publication number: 20120142564
    Abstract: Provided is a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) one or more borated alkaline earth metal alkyltoluene sulfonate detergents; wherein the lubricating oil composition comprises no more than about 0.20 wt. % of phosphorus and no more than about 0.50 wt. % of sulfur.
    Type: Application
    Filed: February 15, 2012
    Publication date: June 7, 2012
    Applicants: Chevron Oronite S.A., Chevron Oronite Company LLC
    Inventors: Perla Duchesne, John McDonald, Sinquin Gilles, Pierre Tequi
  • Process for making borated alkaline earth metal toluene sulfonates
    Patent number: 7868209
    Abstract: Provided is a new and improved process for preparing a borated alkaline earth metal toluene sulfonate salt.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: January 11, 2011
    Assignees: Chevron Oronite SA, Chevron Oronite Company LLC
    Inventors: Perla Duchesne, John McDonald, Gilles Sinquin, Pierre Tequi
  • LUBRICATING OIL WITH ENHANCED PROTECTION AGAINST WEAR AND CORROSION
    Publication number: 20080300154
    Abstract: Provided is a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) one or more borated alkaline earth metal alkyltoluene sulfonate detergents; wherein the lubricating oil composition comprises no more than about 0.20 wt. % of phosphorus and no more than about 0.50 wt. % of sulfur.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Perla Duchesne, John McDonald, Sinquin Gilles, Pierre Tequi
  • PROCESS FOR MAKING BORATED ALKALINE EARTH METAL TOLUENE SULFONATES
    Publication number: 20080300426
    Abstract: Provided is a new and improved process for preparing a borated alkaline earth metal toluene sulfonate salt.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Perla Duchesne, John McDonald, Gilles Sinquin, Pierre Tequi
  • Use of polyalphaolefins (PAO) derived from dodecene or tetradecene to improve thermal stability in engine oil in an internal combustion engine
    Patent number: 6313077
    Abstract: The present invention relates to compositions of base oils and automotive engine oils using synthetic poly alpha olefins derived from 1-dodecene or 1-tetradecene to improve engine oil performance as demonstrated by the severe Volkswagen T-4, Volkswagen TDI, and Sequence IIIE tests.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: November 6, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Frank Stunnenberg, Perla Duchesne, Jurgen H. Raddatz