Patents by Inventor Tushar Bera

Tushar Bera 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).

  • Fuel compositions
    Patent number: 11499106
    Abstract: A fuel composition comprising a base fuel and at least one viscosity index (VI) improving additive, wherein the viscosity index (VI) improving additive is a functionalized dispersant olefin copolymer. The viscosity index (VI) improving additive provides improved power output and/or acceleration characteristics.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 15, 2022
    Assignee: SHELL USA, INC.
    Inventors: Alastair Graham Smith, Claire Griffiths, Mark Clift Southby, Tushar Bera
  • Use of a wax anti-settling additive in automotive fuel compositions
    Patent number: 11359155
    Abstract: Use of a wax anti-settling agent (WASA), in an automotive fuel composition, for the purpose of improving the acceleration performance of an internal combustion engine into which the fuel composition is or is intended to be introduced or of a vehicle powered by such an engine.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: June 14, 2022
    Assignee: SHELL USA, INC.
    Inventors: Mark Lawrence Brewer, Nicholas James Rounthwaite, Michael Alan Parkes, Tushar Bera
  • FUEL COMPOSITIONS
    Publication number: 20220002627
    Abstract: A fuel composition comprising a base fuel and at least one viscosity index (VI) improving additive, wherein the viscosity index (VI) improving additive is a functionalized dispersant olefin copolymer. The viscosity index (VI) improving additive provides improved power output and/or acceleration characteristics.
    Type: Application
    Filed: November 22, 2019
    Publication date: January 6, 2022
    Inventors: Alastair Graham SMITH, Claire GRIFFITHS, Mark Clift SOUTHBY, Tushar BERA
  • FUEL COMPOSITIONS
    Publication number: 20210380894
    Abstract: A fuel composition comprising a base fuel and at least one viscosity index (VI) improving additive, wherein the viscosity index (VI) improving additive is a star-shaped polyisoprene-based polymer. The viscosity index improving additive can be used in a fuel composition to provide improved lubricity as well as providing improved power output and/or acceleration characteristics.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 9, 2021
    Inventors: Alastair Graham SMITH, Claire GRIFFITHS, Mark Clift SOUTHBY, Tushar BERA
  • USE OF A WAX ANTI-SETTLING ADDITIVE IN AUTOMOTIVE FUEL COMPOSITIONS
    Publication number: 20200325410
    Abstract: Use of a wax anti-settling agent (WASA), in an automotive fuel composition, for the purpose of improving the acceleration performance of an internal combustion engine into which the fuel composition is or is intended to be introduced or of a vehicle powered by such an engine.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 15, 2020
    Inventors: Mark Lawrence BREWER, Nicholas James ROUNTHWAITE, Michael Alan PARKES, Tushar BERA
  • Soot dispersants and lubricating oil compositions containing same
    Publication number: 20060189492
    Abstract: Linked aromatic compounds found to act as potent soot dispersants in lubricating oil compositions; lubricating oil compositions containing such soot dispersants and precursor compounds from which the soot dispersants are derived.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 24, 2006
    Inventors: Tushar Bera, Nancy Diggs, Rolfe Hartley, Jacob Emert, Michael Alessi, Jun Hua