Patents by Inventor Olivier Pascal Marie Clement

Olivier Pascal Marie Clement 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).

  • Use of surfactants with high molecular weight for improving the filterability in hydraulic lubricants
    Patent number: 6624123
    Abstract: A hydraulic oil, a predominant amount of an oil having a viscosity suitable for lubrication, and from 0.03% to 0.06% of an agent improving filterability, corresponding to the formula R—Z. Z represents an ester of succinic acid comprising the reaction product of a succinic anhydride and an aliphatic polyhydric alcohol; or a succinimide comprising the reaction product of a succinic anhydride and a polyamine, the said reaction product being treated with an after-treatment agent. R represents a polyolefin having a molecular weight (Mn) of 500 to 2500 and an Mw/Mn ratio of 1 to 5.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: September 23, 2003
    Assignee: Chevron Chemical S.A.
    Inventors: Olivier Pascal Marie Clement, Christophe Le Sausse, Dominique Batelier, Jacques Cazin
  • Mixture of alkyl-phenyl-sulfonates of alkaline earth metals, its application as an additive for lubricating oil, and methods of preparation
    Patent number: 6204226
    Abstract: Mixture of alkyl phenyl sulfonates of alkaline earth metals having: (a) from 20% to 70% by weight of a linear mono alkyl phenyl sulfonate in which the linear mono alkyl substituent contains from 14 to 40 carbon atoms, preferably from 20 to 24 carbon atoms, and the mole % of the phenyl sulfonate radical fixed on position 1 or 2 of the linear alkyl chain is between 10% and 25%, preferably between 13% and 20%, and (b) from 30% to 80% by weight of a branched mono alkyl phenyl sulfonate in which the branched mono alkyl substituent contains from 14 to 18 carbon atoms.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: March 20, 2001
    Assignees: Chevron Oronite S.A., Chevron Oronite Co. LLC
    Inventors: Jean-Louis Le Coent, Olivier Pascal Marie Clement, Amedee Guellec, William Frank King, Richard J. Nelson, Steven G. Lockett