Patents by Inventor Gary M. Walker

Gary M. Walker 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: 11999922
    Abstract: The present invention relates to a lubricating composition comprising a detergent additive derived from raw cashew nut shell liquid. The invention also provides a process for preparing the additive and the use of the lubricating composition in a mechanical device.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: June 4, 2024
    Assignee: The Lubrizol Corporation
    Inventors: Hyungsoo Kim, James D. Burrington, Nathan J. Bartlett, Gary M. Walker, John-Louis DiFlavio
  • Publication number: 20230088684
    Abstract: Alkyl salicylic acids, overbased detergents derived from alkyl salicylic acids, lubricating compositions including the alkyl salicylic acids and/or overbased detergents, and processes of making and using the same, are described.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 23, 2023
    Inventors: Edward P. Sampler, John-Louis DiFlavio, Gary M. Walker, James P. Roski, Hyungsoo Kim
  • Publication number: 20230023443
    Abstract: The present invention relates to a lubricating composition comprising a detergent additive derived from raw cashew nut shell liquid. The invention also provides a process for preparing the additive and the use of the lubricating composition in a mechanical device.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 26, 2023
    Applicant: The Lubrizol Corporation
    Inventors: Hyungsoo Kim, James D. Burrington, Nathan J. Bartlett, Gary M. Walker, John-Louis DiFlavio
  • Patent number: 11466226
    Abstract: The disclosed technology provides alkylphenol-containing detergent having at least one unit (a) of an alkyl-substituted phenol wherein the alkyl group is derived from oligomers of an olefin compound containing 3 to 8 carbon atoms, wherein the polyolefin-derived alkyl group comprises at least 30 mol percent of an olefin with 4 or more carbon atoms. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: October 11, 2022
    Assignee: The Lubrizol Corporation
    Inventors: Gary M. Walker, James P. Roski, Ewan E. Delbridge
  • Publication number: 20210309932
    Abstract: A lubricating composition suited to use for lubricating a hydraulic system includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: June 2, 2021
    Publication date: October 7, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby, Betsy J. Butke
  • Publication number: 20210269732
    Abstract: A lubricating composition suited to use in lubricating an internal combustion engine includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 2, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby
  • Publication number: 20210269734
    Abstract: A polyisobutylene-substituted hydroxyaromatic compound and derivatives thereof which are suitable for use as additives in lubricating compositions. The polyisobutylene-substituted hydroxyaromatic compound may include the reaction product of a hydroxyaromatic compound with a polyisobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby
  • Publication number: 20210189279
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Applicant: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Patent number: 10988701
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 27, 2021
    Assignee: The Lubrizol Corporation
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson
  • Patent number: 10975323
    Abstract: A lubricating composition includes a sulfurized oxy-substituted aromatic polyol compound and an oil of lubricating viscosity. The sulfurized oxy-substituted aromatic polyol compound includes at least one of a sulfurized oxy-substituted aromatic polyol and a salt of a sulfurized oxy-substituted aromatic polyol. The compound is suitable as a replacement for detergents that contain Cn alkyl phenols derived from oligomers of propylene.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: April 13, 2021
    Assignee: THE LUBRIZOL CORPORATION
    Inventors: Kamalakumari K. Salem, Gary M. Walker, Ewan E. Delbridge, David J. Moreton, Adam Cox, W. Preston Barnes, James P. Roski, Mohamed G. Fahmy
  • Publication number: 20200377815
    Abstract: A polyisobutylene-substituted hydroxyaromatic compound and derivatives thereof which are suitable for use as additives in lubricating compositions. The polyisobutylene-substituted hydroxyaromatic compound may include the reaction product of a hydroxyaromatic compound with a polyisobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 3, 2020
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby
  • Publication number: 20200377817
    Abstract: A lubricating composition suited for use in lubricating a driveline device includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 3, 2020
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby, Blayne M. McKenzie
  • Publication number: 20200318029
    Abstract: A lubricating composition suited to use for lubricating a hydraulic system includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 8, 2020
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby, Betsy J. Butke
  • Publication number: 20200318025
    Abstract: A lubricating composition suited to use in lubricating an internal combustion engine includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 8, 2020
    Inventors: Edward P. Sampler, Gary M. Walker, Stephen J. Cook, Samuel M. Kilsby
  • Publication number: 20200283694
    Abstract: A lubricating composition includes a sulfurized oxy-substituted aromatic polyol compound and an oil of lubricating viscosity. The sulfurized oxy-substituted aromatic polyol compound includes at least one of a sulfurized oxy-substituted aromatic polyol and a salt of a sulfurized oxy-substituted aromatic polyol. The compound is suitable as a replacement for detergents that contain Cn alkyl phenols derived from oligomers of propylene.
    Type: Application
    Filed: December 7, 2016
    Publication date: September 10, 2020
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Kamalakumari K. Salem, Gary M. Walker, Ewan E. Delbridge, David J. Moreton, Adam Cox, W. Preston Bames, James P. Roski, Mohamed G. Fahmy
  • Publication number: 20200231891
    Abstract: The disclosed technology provides alkylphenol-containing detergent having at least one unit (a) of an alkyl-substituted phenol wherein the alkyl group is derived from oligomers of an olefin compound containing 3 to 8 carbon atoms, wherein the polyolefin-derived alkyl group comprises at least 30 mol percent of an olefin with 4 or more carbon atoms. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Inventors: Gary M. Walker, James P. Roski, Ewan E. Delbridge
  • Patent number: 10526559
    Abstract: The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.2 wt % to 10 wt % of a salt of a hydroxyl functional aromatic compound. The disclosed technology further relates to a method of lubricating a mechanical device with the lubricant composition.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 7, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Kamalakumari Kunchithapatham Salem, David J. Moreton, Mohamed G. Fahmy, Gary M. Walker, James P. Roski, Adam Cox, W. Preston Barnes, Ewan E. Delbridge, Jason E. Melvin, Robert D. Dura
  • Patent number: 10501702
    Abstract: A phosphate complex of a borate ester provides wear- and friction-reducing performance to an engine or driveline device. The complex may be a pyroborate-hydrocarbyl-substituted phosphate adduct. Boric acid may be reacted with a diol to form an ester, then reacting said ester with an ammonium salt of phosphoric acid or a hydrocarbyl-substituted phosphoric acid.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 10, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Edward P. Sampler, Mark J. McGuiness, William R. S. Barton, Deborah Kays, Nicolas I. Nouvel, Gary M. Walker, Katherine M. Shaw
  • Patent number: 10501701
    Abstract: The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.01 wt % to 10 wt % of an oxyalkylated aromatic polyol compound, wherein the aromatic compound has at least one alkoxy group represented by —OR1 group, R1 is hydroxyalkyl, or a (poly)ether group, and either: at least one hydroxyl group, or at least one alkoxy group represented by OR1 group, where R1 is alkyl, or a (poly)ether group, or at least one oxyalkyl group represented by —OR1, where R1 is hydroxyalkyl or a (poly)ether group. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the oxyalkylated aromatic polyol compound in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 10, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Kamalakumari Kunchithapatham Salem, David J. Moreton, Mohamed G. Fahmy, Gary M. Walker, James P. Roski, Yanshi Zhang, Adam Cox, W. Preston Barnes, Ewan E. Delbridge
  • Publication number: 20190316057
    Abstract: The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yanshi Zhang, Gary M. Walker, Ewan E. Delbridge, Edward P. Sampler, Neil L. Simpson