Patents by Inventor Elin J. Eis

Elin J. Eis 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).

  • Lubricating oil additives
    Patent number: 11028333
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 8, 2021
    Inventors: Peter J. Dowding, Elin J. Eis
  • Lubricating Oil Additives
    Publication number: 20200148969
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: Infineum International Limited
    Inventors: Peter J. Dowding, Elin J. Eis
  • Lubricating oil additives
    Patent number: 10577555
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: March 3, 2020
    Inventors: Peter J. Dowding, Elin J. Eis
  • Lubricating Oil Additives
    Publication number: 20180134980
    Abstract: A metal-containing detergent, suitable for use as a lubricant additive, in the form of a concentrate in oil in which a basic metal-containing material is maintained in dispersion or solution in the oil by a gemini surfactant system comprising, or being derivable or derived from, a double bond-unsaturated carboxylic acid having 8 to 30 carbon atoms, the double bond or bonds of which being functionalized to carry polar groups across or on the double bond or bonds and the carboxylic acid group or groups thereof being functionalized to become an amide or ester group carrying at least one alkyl group having 4 to 20 carbon atoms.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Applicant: Infineum International Limited
    Inventors: Peter J. Dowding, Elin J. Eis