Patents by Inventor Alex Brewster

Alex Brewster 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 compositions and methods of operating an internal combustion engine
    Patent number: 11932825
    Abstract: The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, a mixture of boron-containing and boron-free dispersants, an overbased magnesium-based detergent, an overbased calcium-based detergent, a molybdenum-containing material, and, optionally, other performance additives. The instant lubricating compositions may improve one or more of cleanliness, TBN retention, fuel economy and low-speed preignition (“LSPI”).
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: March 19, 2024
    Assignee: The Lubrizol Corporation
    Inventors: Craig J. Jones, Ben McDermott, Joanne L. Jones, Ewan E. Delbridge, Alex Brewster
  • LUBRICATING COMPOSITIONS AND METHODS OF OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20230212476
    Abstract: The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, a mixture of boron-containing and boron-free dispersants, an overbased magnesium-based detergent, an overbased calcium-based detergent, an ashless friction modifier, and, optionally, other performance additives. The instant lubricating compositions may improve one or more of cleanliness, TBN retention, fuel economy and low-speed preignition (“LSPI”).
    Type: Application
    Filed: September 23, 2020
    Publication date: July 6, 2023
    Applicant: The Lubrizol Corporation
    Inventors: Craig J. Jones, Ben McDermott, Joanne L. Jones, Ewan E. Delbridge, Alex Brewster
  • LUBRICATING COMPOSITIONS AND METHODS OF OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20220403284
    Abstract: The instant disclosure generally relates to lubricating compositions having an oil of lubricating viscosity, a mixture of boron-containing and boron-free dispersants, an overbased magnesium-based detergent, an overbased calcium-based detergent, a molybdenum-containing material, and, optionally, other performance additives. The instant lubricating compositions may improve one or more of cleanliness, TBN retention, fuel economy and low-speed preignition (“LSPI”).
    Type: Application
    Filed: September 24, 2020
    Publication date: December 22, 2022
    Applicant: The Lubrizol Corporation
    Inventors: Craig J. Jones, Ben McDermott, Joanne L. Jones, Ewan E. Delbridge, Alex Brewster