Patents by Inventor Mahmud M. HUSSAIN

Mahmud M. HUSSAIN 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).

  • Seal swell agents for lubricating compositions
    Patent number: 11193081
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein: R1 and R2 are each independently a hydrocarbyl group containing from about 4 to about 18 carbon atoms; p and q are each independently 0 or an integer from 1 to 3, and the sum of p and q is 1, 2, 3, 4, 5, or 6. The composition is effective at swelling seals.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: December 7, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Mahmud M. Hussain, Peter Miatt
  • Seal swell agents for lubricating compositions
    Patent number: 11174449
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein: x is 0 or 1; R1 is a hydrocarbyl group containing about 4 or about 18 carbon atoms; R2 is an aliphatic hydrocarbyl group containing about 1 to about 12 carbon atoms; and y is 0 or 1, which composition is effective at swelling seals.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: November 16, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Mahmud M. Hussain, Peter Miatt
  • Nitrogen-free phosphorus compounds and lubricants containing the same
    Patent number: 11155765
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 26, 2021
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Seal swell agents for lubricating compositions
    Patent number: 11136524
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: October 5, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Mariam Shamszad, Paul E. Adams, Mahmud M. Hussain, Peter Miatt
  • NITROGEN-FREE PHOSPHORUS COMPOUNDS AND LUBRICANTS CONTAINING THE SAME
    Publication number: 20210040412
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: The Lubrizol Corporation
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Nitrogen-free phosphorus compounds and lubricants containing the same
    Patent number: 10829713
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: November 10, 2020
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Seal swell agents for lubricating compositions
    Patent number: 10808199
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein x is 0 or 1 and R1 is a hydrocarbyl group containing about 4 to about 18 carbon atoms, which composition is effective at swelling seals.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 20, 2020
    Inventors: Mahmud M. Hussain, Peter Miatt
  • SEAL SWELL AGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20200239804
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 30, 2020
    Inventors: Mariam Shamszad, Paul E. Adams, Mahmud M. Hussain, Peter Miatt
  • Seal swell agents for lubrication compositions
    Patent number: 10669504
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 2, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Mariam Shamszad, Paul E. Adams, Mahmud M. Hussain, Peter Miatt
  • SEAL SWELL AGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20190292479
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein: R1 and R2 are each independently a hydrocarbyl group containing from about 4 to about 18 carbon atoms; p and q are each independently 0 or an integer from 1 to 3, and the sum of p and q is 1, 2, 3, 4, 5, or 6. The composition is effective at swelling seals.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 26, 2019
    Inventors: Mahmud M. Hussain, Peter Miatt
  • SEAL SWELL AGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20190292478
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein: x is 0 or 1; R1 is a hydrocarbyl group containing about 4 or about 18 carbon atoms; R2 is an aliphatic hydrocarbyl group containing about 1 to about 12 carbon atoms; and y is 0 or 1, which composition is effective at swelling seals.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 26, 2019
    Inventors: Mahmud M. Hussain, Peter Miatt
  • NITROGEN-FREE PHOSPHORUS COMPOUNDS AND LUBRICANTS CONTAINING THE SAME
    Publication number: 20190284495
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Application
    Filed: May 17, 2017
    Publication date: September 19, 2019
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • SEAL SWELL AGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20190203143
    Abstract: A composition comprising an oil of lubricating viscosity and a compound represented by formula (I) wherein x is 0 or 1 and R1 is a hydrocarbyl group containing about 4 to about 18 carbon atoms, which composition is effective at swelling seals.
    Type: Application
    Filed: May 22, 2017
    Publication date: July 4, 2019
    Inventors: Mahmud M. Hussain, Peter Miatt
  • SEAL SWELL AGENTS FOR LUBRICATING COMPOSITIONS
    Publication number: 20180223214
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 9, 2018
    Inventors: Mariam SHAMSZAD, Paul E. ADAMS, Mahmud M. HUSSAIN, Peter MIATT