Patents by Inventor Margaret M. S. Wu

Margaret M. S. Wu 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).

  • Air hydroxylation of diamondoids
    Patent number: 5268513
    Abstract: The invention provides a method for selectively hydroxylating a diamondoid compound to an alcohol of the diamondoid compound comprising contacting the diamondoid compound with an oxygen-containing gas under hydroxylation conditions including temperature of at least about 70.degree. C.
    Type: Grant
    Filed: September 10, 1992
    Date of Patent: December 7, 1993
    Assignee: Mobil Oil Corporation
    Inventors: Dong-ming Shen, Margaret M. S. Wu
  • High VI lubricants from lower alkene oligomers
    Patent number: 4962249
    Abstract: Near linear higher olefinic hydrocarbons produced by the oligomerization of lower olefins using surface deactivated zeolite catalyst can be converted to a mixture comprising slightly branched and linear higher alpha olefins. These alpha olefins are oligomerized to lubricant grade hydrocarbons in contact with cationic, Ziegler or coordination catalyst. Oligomerization of the aforementioned alpha olefins using reduced valence state Group VIB metal oxide catalyst on porous support provides a hydrocarbon lubricant with a viscosity index of greater than 130 at 100.degree. C.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: October 9, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Catherine S. H. Chen, Margaret M. S. Wu