Patents by Inventor Ian Stuart Hobday

Ian Stuart Hobday 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 composition
    Patent number: 11697783
    Abstract: The present invention provides a non-aqueous lubricant composition comprising a base stock and 5 at least 0.02 wt % of a friction reducing additive which comprises a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol. The invention also provides the use of a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol to reduce the kinetic co-efficient 10 of friction in a non-aqueous lubricant composition when compared to an equivalent lubricant composition comprising no block co-polymer.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: July 11, 2023
    Assignee: EQUUS UK TOPCO LTD
    Inventors: Ian Stuart Hobday, Aitziber Viadas Cienfuegos, John Eastwood
  • LUBRICANT COMPOSITION
    Publication number: 20190144777
    Abstract: The present invention provides a non-aqueous lubricant composition comprising a base stock and 5 at least 0.02 wt % of a friction reducing additive which comprises a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol. The invention also provides the use of a block co-polymer of at least one block A which is an oligo- or polyester residue of a hydroxycarboxylic acid and at least one block B which is a residue of a polyalkylene glycol to reduce the kinetic co-efficient 10 of friction in a non-aqueous lubricant composition when compared to an equivalent lubricant composition comprising no block co-polymer.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 16, 2019
    Applicant: Croda International Plc
    Inventors: Ian Stuart Hobday, Aitziber Viadas Cienfuegos, John Eastwood