Patents by Inventor Shubhamita Basu

Shubhamita Basu 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).

  • Patent number: 11254893
    Abstract: A hydraulic lubricating oil composition is provided which contains a synergistic mixture of three phosphorous antiwear components in order to provide good thermal stability and good demulsibility to the lubricating oil composition.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: February 22, 2022
    Assignee: The Lubrizol Corporation
    Inventor: Shubhamita Basu
  • Publication number: 20210163841
    Abstract: A hydraulic lubricating oil composition is provided which contains a synergistic mixture of three phosphorous antiwear components in order to provide good thermal stability and good demulsibility to the lubricating oil composition.
    Type: Application
    Filed: June 7, 2018
    Publication date: June 3, 2021
    Applicant: The Lubrizol Corporation
    Inventor: Shubhamita Basu
  • Patent number: 10208267
    Abstract: The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: February 19, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Shubhamita Basu, James N. Vinci, Michael S. Wragg
  • Publication number: 20170218294
    Abstract: The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 3, 2017
    Inventors: Shubhamita Basu, James N. Vinci, Michael S. Wragg
  • Publication number: 20160122683
    Abstract: The invention relates to industrial gear oil compositions that have been specially designed to have improved friction and/or antiwear properties. That is the industrial gear oil compositions of the invention provide good performance and/or protection in the areas of friction and/or antiwear due to the use of a synergistic combination of additives. The industrial gear oil compositions of the invention utilize a combination of certain phosphorus-containing compounds and derivatives of a hydroxy-carboxylic acid, to provide a synergistic improvement in friction and/or antiwear properties.
    Type: Application
    Filed: May 27, 2014
    Publication date: May 5, 2016
    Applicant: The Lubrizol Corporation
    Inventors: Shubhamita Basu, James N. Vinci
  • Publication number: 20160017250
    Abstract: An object of the present invention is to provide a lubricant composition for a limited slip differential comprising a major amount of an oil of lubricating viscosity and an oil soluble compound, as well as a method of using the same in a differential. The compound can be of formula R?NH(CH2)3NHCOR?, wherein R? can be a C8-28 amine, and —COR? can be derived from a C8-28 acid.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 21, 2016
    Inventors: Stuart L. Bartley, Shubhamita Basu
  • Patent number: 8940671
    Abstract: The invention relates to a lubricating composition containing (a) an N-substituted malimide, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: January 27, 2015
    Assignee: The Lubrizol Corporation
    Inventor: Shubhamita Basu
  • Publication number: 20140342962
    Abstract: An object of the present invention is to provide an oil soluble compound and a lubricating composition and method of using the same in a differential. The compound can be of formula R?N((CH2)2CONHR?)2, wherein R? can be H or a C8-28 hydrocarbyl group wherein up to 4 carbon atoms in the hydrocarbyl group may optionally be replaced by nitrogen or oxygen atoms, and R? can be H or a C8-28 hydrocarbyl group. The invention further provides a method of producing an oil soluble compound suitable for limited slip performance. The method comprises preparing a Michael adduct from an acrylate and an alkylamine of formula R?NH2, followed by subjecting the Michael adduct to an amidation reaction with a further alkylamine of formula R?NH2.
    Type: Application
    Filed: December 27, 2012
    Publication date: November 20, 2014
    Applicant: The Lubrizoi Corporaton
    Inventors: Shubhamita Basu, Daniel J. Saccomando
  • Patent number: 8551927
    Abstract: The invention relates to a lubricating composition containing (a) an oil of lubricating viscosity, and (b) an oil soluble compound with a >N—R—N< group, wherein R may be a hydrocarbylene group. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: October 8, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Daniel J. Saccomando, Stuart L. Bartley, Shubhamita Basu
  • Publication number: 20130210689
    Abstract: The invention relates to a lubricating composition containing (a) an oil of lubricating viscosity, and (b) an oil soluble compound with a >N—R—N< group, wherein R may be a hydrocarbylene group. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Application
    Filed: May 23, 2011
    Publication date: August 15, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Daniel J. Saccomando, Stuart L. Bartley, Shubhamita Basu
  • Publication number: 20120172265
    Abstract: The invention relates to a lubricating composition comprising (a) a compound derived from a hydroxy-carboxylic acid, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Application
    Filed: December 8, 2009
    Publication date: July 5, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Stuart L. Bartley, Mark R. Baker, Shubhamita Basu
  • Publication number: 20120115761
    Abstract: The invention relates to a lubricating composition containing (a) an N-substituted malimide, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
    Type: Application
    Filed: May 10, 2010
    Publication date: May 10, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventor: Shubhamita Basu