Patents by Inventor Chung-Lai Wong

Chung-Lai Wong 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).

  • Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks
    Patent number: 8236741
    Abstract: Haze formation in heavy Gas-to-Liquids (GTL) base stock is mitigated by the addition to said GTL base stock of one or more particular additives.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 7, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Marc-André Poirier, Charles Lambert Baker, Jr., Nicholas Anthony Hilder, Chung-Lai Wong, Dorothy Wong, legal representative, James William Gleeson, Vera Minak-Bernero
  • Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks
    Publication number: 20090186786
    Abstract: Haze formation in heavy Gas-to-Liquids (GTL) base stock is mitigated by the addition to said GTL base stock of one or more particular additives.
    Type: Application
    Filed: November 14, 2008
    Publication date: July 23, 2009
    Inventors: Marc-Andre Poirier, Charles Lambert Baker, JR., Nicholas Anthony Hilder, Dorothy Wong, Chung-Lai Wong, James William Gleeson, Vera Minak-Bernero
  • High viscosity, biodegradable lubricating oil
    Patent number: 5994279
    Abstract: A lubricant composition especially useful for saw guide use comprises a base oil composed of at least one synthetic ester and a thickener composed of a styrene-olefin copolymer dissolved in a vegetable oil. The thickener is present in an amount sufficient to provide the lubricant with a viscosity at 40.degree. C. of greater than about 100 cSt.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: November 30, 1999
    Assignee: Exxon Research and Engineering Company
    Inventors: Gerald Felsky, Chung-Lai Wong, Todd Timothy Nadasdi
  • Sulphur-free, PAO-base lubricants with excellent anti-wear properties and superior thermal/oxidation stability
    Patent number: 5955403
    Abstract: A sulfur free lubricating composition comprises a major portion of a synthetic base lubricating oil and a minor portion of a tri(alkyl phenyl) phosphate or di(alkylphenyl)phosphoric acid antiwear agent, an amine antioxidant a substituted succinamide rust inhibitor and a tolytriazole. The tri(alkylphenyl)phosphate antiwear agent is incorporated in the oil in an amount ranging between about 0.1 to 2.0 wt % and the amine antioxidant in amount ranging from about 0.1 to 5 wt %. The succinamide is present in an amount ranging from about 0.01 to 0.5 wt % and the tolytriazole, from about 0.01 to 0.5 wt %. In the foregoing, the wt % is based on the weight of oil.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: September 21, 1999
    Assignee: Exxon Research and Engineering Company
    Inventor: Chung-Lai Wong