Patents Represented by Attorney Alexander J. Speciale, Charles J. McKillop

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  • Multifunctional additives for lubricants and fuels
    Patent number: 5084069
    Abstract: A lubricant or fuel composition contains a multifunctional antioxidant and antiwear amount of an O,O-diorgano-S-(2-hydroxyalkyl) phosphorodithioate derived hydrogen phosphonate which can be made by reacting a diorganophosphorodithioic acid with an epoxide and a dialkyl phosphite, such as dimethyl phosphite.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: January 28, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky