Patents by Inventor David Anthony James GILLESPIE

David Anthony James GILLESPIE 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 formulation comprising friction modifier additive
    Patent number: 11111454
    Abstract: The invention provides a lubricant formulation comprising: (a) a base oil selected from API Group I to V oils and mixtures thereof; (b) 0.01 to 10 wt % on the basis of the total weight of the lubricant formulation of a friction modifier additive; and (c) other lubricant formulation additives. The friction modifier additive has a hydroxyl value in the range from 10 to 300 mg KOH/g and is the reaction product of reactants comprising: i) a dimer fatty acid; ii) a polyol; iii) optionally, a C2 to C12 dicarboxylic acid or diol; and iv) optionally, a C1 to C10 mono-carboxylic acid or mono-alcohol. The invention also provides a method of lubricating an internal combustion engine comprising a crankcase and a wet clutch and the use of a friction modifier additive.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: September 7, 2021
    Assignee: Croda International PLC
    Inventors: David Anthony James Gillespie, John Eastwood, Gareth Moody, Aitziber Viadas Cienfuegos
  • LUBRICANT FORMULATION COMPRISING FRICTION MODIFIER ADDITIVE
    Publication number: 20210171857
    Abstract: The invention provides a lubricant formulation comprising: (a) a base oil selected from API Group I to V oils and mixtures thereof; (b) 0.01 to 10 wt % on the basis of the total weight of the lubricant formulation of a friction modifier additive; and (c) other lubricant formulation additives. The friction modifier additive has a hydroxyl value in the range from 10 to 300 mg KOH/g and is the reaction product of reactants comprising: i) a dimer fatty acid; ii) a polyol; iii) optionally, a C2 to C12 dicarboxylic acid or diol; and iv) optionally, a C1 to C10 mono-carboxylic acid or mono-alcohol. The invention also provides a method of lubricating an internal combustion engine comprising a crankcase and a wet clutch and the use of a friction modifier additive.
    Type: Application
    Filed: November 2, 2018
    Publication date: June 10, 2021
    Inventors: David Anthony James GILLESPIE, John EASTWOOD, Gareth MOODY, Atiziber VIADAS CIENFUEGOS