Patents by Inventor Ian Alexander Weston Bell

Ian Alexander Weston Bell 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 additives
    Patent number: 6110878
    Abstract: Oil-soluble or oil-dispersible trinuclear molybdenum-sulfur compounds are made by reacting less than three, such as 1.5 to 2.5, preferably two to 2.1, molar equivalents of a disulfide with one molar equivalent of a compound containing the [Mo.sub.3 S.sub.13 ].sup.2- ion. The trinuclear compounds include S-containing ligands that are derived from the disulfide reactant via cleavage of the disulfide bond; the ligands are bound to the core via the S atoms.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 29, 2000
    Assignee: Exxon Chemical Patents Inc
    Inventors: Jonathan M. McConnachie, Edward Ira Stiefel, Ian Alexander Weston Bell, Velautha-Cumaran Arunasalam
  • Method of synthesizing Mo.sub.3 S.sub.x containing compounds
    Patent number: 5906968
    Abstract: A method of making an oil-soluble or oil-dispersible trinuclear molybdenum-sulfur compound, comprising: reacting two to less than three equivalents of a tetrahydrocarbyl thiuram disulfide and one equivalent of a compound containing the ?Mo.sub.3 S.sub.13 !.sup.2- ion to produce a trinuclear molybdenum compound of the formula Mo.sub.3 S.sub.x (L).sub.4 wherein x is from 4 to 10 and L is dihydrocarbyl-dithiocarbamate.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: May 25, 1999
    Assignee: Exxon Research & Engineering Company
    Inventors: Jonathan M. McConnachie, Edward I. Stiefel, Ian Alexander Weston Bell, Velautha-Cumaran Arunasalam