Patents by Inventor David M. Matheu

David M. Matheu 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: 11692081
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: July 4, 2023
    Assignee: Cabot Corporation
    Inventors: David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
  • Publication number: 20220056241
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
  • Patent number: 11198774
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Grant
    Filed: November 23, 2019
    Date of Patent: December 14, 2021
    Assignee: Cabot Corporation
    Inventors: David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
  • Patent number: 10829642
    Abstract: Methods for the production of carbon black using an extender fluid(s) are provided as well as methods to control one or more particle properties of carbon black utilizing extender fluids and other techniques.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: November 10, 2020
    Assignee: CABOT CORPORATION
    Inventors: Chad J. Unrau, David O. Hunt, David M. Matheu, Serguei Nester
  • Publication number: 20200190288
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Application
    Filed: November 23, 2019
    Publication date: June 18, 2020
    Inventors: David M. Matheu, Theis F. Clarke, David S. Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval A. Doshi, Martin C. Green
  • Patent number: 10519298
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 31, 2019
    Assignee: Cabot Corporation
    Inventors: David M. Matheu, Theis Clarke, David Scott Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval Doshi, Martin C. Green
  • Publication number: 20160319110
    Abstract: Core particles produced in situ or introduced as preformed core particles are coated with a layer of carbon. Non-carbon as well as some carbon-based core materials can be utilized. The resulting carbon coated particles can find applications in rubber products, for instance as reinforcement for tire components.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 3, 2016
    Inventors: David M. Matheu, Theis Clarke, David Scott Crocker, Frederick H. Rumpf, David C. Reynolds, Dhaval Doshi, Martin C. Green
  • Publication number: 20160002470
    Abstract: Methods for the production of carbon black using an extender fluid(s) are provided as well as methods to control one or more particle properties of carbon black utilizing extender fluids and other techniques.
    Type: Application
    Filed: February 26, 2014
    Publication date: January 7, 2016
    Applicant: CABOT CORPORATION
    Inventors: Chad J. Unrau, David O. Hunt, David M. Matheu, Serguei Nester
  • Patent number: 8038971
    Abstract: The invention provides fumed silica comprising aggregates that have an aggregate size and a surface area that satisfy particular formulas relating aggregate size to surface area, as well as aggregates that exhibit particular viscosity, power law exponent index, and/or elastic modulus characteristics when dispersed in liquid media. The invention also provides processes of preparing such fumed silica by combining a silica precursor with a stream of combustible gas, combusting the stream, and producing a stream of combusted gas and fumed silica particles, wherein dopants are introduced, the time/temperature profile, or history, of the stream of combusted gas and fumed silica particles is adjusted to allow for post-quench aggregate growth, and/or additional silica precursor is introduced into the stream of combusted gas.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: October 18, 2011
    Assignee: Cabot Corporation
    Inventors: Sheldon B. Davis, Angelica M. Sanchez Garcia, David M. Matheu, Yakov E. Kutsovsky
  • Publication number: 20100059704
    Abstract: The invention provides fumed silica comprising aggregates that have an aggregate size and a surface area that satisfy particular formulas relating aggregate size to surface area, as well as aggregates that exhibit particular viscosity, power law exponent index, and/or elastic modulus characteristics when dispersed in liquid media. The invention also provides processes of preparing such fumed silica by combining a silica precursor with a stream of combustible gas, combusting the stream, and producing a stream of combusted gas and fumed silica particles, wherein dopants are introduced, the time/temperature profile, or history, of the stream of combusted gas and fumed silica particles is adjusted to allow for post-quench aggregate growth, and/or additional silica precursor is introduced into the stream of combusted gas.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Applicant: Cabot Corporation
    Inventors: Sheldon B. Davis, Angelica M. Sanchez Garcia, David M. Matheu, Yakov E. Kutsovsky