Patents by Inventor Rachel Tundel

Rachel Tundel 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).

  • Low ash and ash-free acid neutralizing compositions and lubricating oil compositions containing same
    Patent number: 10731103
    Abstract: An oleaginous nanoparticle dispersion of nanoparticles having a core of an organic base material immobilized within a surfactant layer, the use thereof as a low ash, or ash-free source of TBN in lubricating oil compositions, and lubricating oil compositions formulated with such oleaginous nanoparticle dispersions.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 4, 2020
    Assignee: Infineum International Limited
    Inventors: Jacob Emert, Rachel Tundel, Peter Wright, Sandip Agarwal, Xinhua Li, Joseph McLellan, Patrick Reust
  • Marine engine lubrication
    Patent number: 10364404
    Abstract: A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-substituted succinic acid anhydride made by halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 30, 2019
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Tushar K. Bera, Rachel Tundel, Laura Gregory, Peter M. Wright
  • LOW ASH AND ASH-FREE ACID NEUTRALIZING COMPOSITIONS AND LUBRICATING OIL COMPOSITIONS CONTAINING SAME
    Publication number: 20190177650
    Abstract: An oleaginous nanoparticle dispersion of nanoparticles having a core of an organic base material immobilized within a surfactant layer, the use thereof as a low ash, or ash-free source of TBN in lubricating oil compositions, and lubricating oil compositions formulated with such oleaginous nanoparticle dispersions.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 13, 2019
    Applicant: Infineum International Limited
    Inventors: Jacob Emert, Rachel Tundel, Peter Wright, Sandip Agarwal, Xinhua Li, Joseph McLellan, Patrick Reust
  • Marine engine lubrication
    Patent number: 9879202
    Abstract: A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-substituted succinic acid anhydride, preferably made by halogen- or radical-assisted fractionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: January 30, 2018
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Tushar K. Bera, Laura Gregory, Rachel Tundel, Peter M. Wright
  • Marine Engine Lubrication
    Publication number: 20160230113
    Abstract: A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-substituted succinic acid anhydride made by halogen- or radical-assisted functionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.
    Type: Application
    Filed: October 27, 2015
    Publication date: August 11, 2016
    Applicant: Infineum International Limited
    Inventors: Tushar K. Bera, Rachel Tundel, Laura Gregory, Peter M. Wright
  • MARINE ENGINE LUBRICATION
    Publication number: 20160160149
    Abstract: A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-subsituted succinic acid anhydride, preferably made by halogen- or radical-assisted fractionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 9, 2016
    Applicant: Infineum International Limited
    Inventors: Tushar K. Bera, Laura Gregory, Rachel Tundel, Peter M. Wright