Patents by Inventor George C. L'Heureux

George C. L'Heureux 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 Compositions with Reduced Phosphorous Content for Engines having Catalytic Converters
    Publication number: 20090042752
    Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) ashless dispersant; (b) metal-containing detergent; (c) a phosphorus-containing compound; (d) rust inhibitor; and (e) basestock, wherein the lubricant composition has a concentration of phosphorus less than or equal to 0.08 weight %.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Malcolm Waddoups, George C. L'Heureux
  • Lubricating oil composition for marine engines
    Publication number: 20040121918
    Abstract: The lubricating compositions of the present invention are designed for use in a four stroke outboard marine engine and contain an oil of lubricating viscosity, an ashless dispersant, a metal detergent, a rust inhibitor system comprising a combination of certain rust inhibitors with an ethoxylated alkyl phenol, a relatively high amount of ZDDP, and an amount of a molybdenum compound sufficient to provide the composition with 15-1,000 ppm by mass of molybdenum. An amount of about 15 ppm to 1,000 ppm by mass of molybdenum from a molybdenum compound has been found to be effective as an antiwear agent in combination with the high levels of ZDDP.
    Type: Application
    Filed: September 8, 2003
    Publication date: June 24, 2004
    Inventors: Salvatore Rea, Malcolm Waddoups, Rolfe J. Hartley, Ricardo A. Bloch, Michael D. Hoey, George C. L'Heureux
  • Two-cycle lubricating oil with reduced smoke generation
    Patent number: 6455477
    Abstract: There is disclosed a low smoke two cycle oil comprising a solvent and 5-20% by weight polyisobutylene which has a KV of at least 6.5 mm2/s at 100° C. and a JASO M342 Smoke Index of at least 85.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: September 24, 2002
    Assignee: Infineum International Ltd.
    Inventor: George C. L'Heureux
  • Two-cycle lubricating oil
    Patent number: 6300290
    Abstract: There is disclosed a two cycle oil comprising a VI improver, solvent and polyisobutylene which has a Brookfield viscosity of less than 17,000 cP at −40° C. and a KV of at least 6.5 mm2/s at 100° C.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: October 9, 2001
    Assignee: Infineum International LTD
    Inventors: George C. L'Heureux, George M. Tiffany
  • Two-cycle ester based synthetic lubricating oil
    Patent number: 5942474
    Abstract: A two-cycle oil which is 10 to 20% of an ester of technical grade pentaerythriol with a mixture of (a) branched C8 and (b) mixed linear C8 and C10 monocarboxylic acids, having a viscosity of 6 to 8 cSt at 100.degree. C., 18 to 30% of an oxo alcohol ester of a dicarboxylic acid having a viscosity of 3 to 10 cSt at 100.degree. C., 30 to 40% of a polybutene having an Mn of 300-1500, 15 to 35% of a normally liquid solvent having a boiling point up to 300.degree. C., 0 to 5% of other lubricating oil additives.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: George Mortimer Tiffany, Eric Lewis, George C L'Heureux
  • Biodegradable two-cycle oil composition
    Patent number: 5562867
    Abstract: A biodegradable two-cycle oil composition which comprises a C.sub.13 oxo alcohol adipate in admixture with a dispersant and a lubricity agent; it is especially useful for outboard marine engines.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: October 8, 1996
    Assignee: Exxon Chemical Patents Inc
    Inventors: George M. Tiffany, III, Beth A. Morgan, George C. L'Heureux, Lewis H. Gaines, William H. Stover