Patents by Inventor Donald W. Murray

Donald W. Murray 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).

  • High dropping point greases comprising a lithium soap of an epoxy-substituted and/or an ethylenically unsaturated fatty acid
    Patent number: 3985662
    Abstract: Grease compositions comprising (1) a lithium soap derived from a fatty acid containing an epoxy group and/or ethylenic unsaturation, and (2) a dilithium soap derived from a straight chain dicarboxylic acid. In a preferred embodiment, the grease composition will also comprise a lithium salt derived from a hydroxy-substituted carboxylic acid. Greases comprising lithium salts derived from an epoxy substituted fatty acid in combination with other lithium salts and derived from an ethylenically unsaturated fatty acid, a dicarboxylic acid and a hydroxy-substituted aromatic acid are particularly effective.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: October 12, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Ian D. Campbell, Terrance O. Brown, Donald W. Murray