Patents by Inventor Paul J. Dofton

Paul J. Dofton 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: 12297403
    Abstract: Systems and methods to reduce pour point (PP) temperatures of fat-based compositions for use in transportation fuels. In one or more embodiments, methods and systems reduce the pour point of rendered fats using biologically-derived plant oils for effectively transporting the blended fat based compositions over long distances, thereby advantageously decreasing the heating and mixing requirements needed to maintain the compositional temperature above the pour point. In certain embodiments, the fat based composition comprises rendered animal fats, such as tallow in combination with distilled corn oil (DCO).
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: May 13, 2025
    Assignee: Marathon Petroleum Company LP
    Inventors: Daniel Z Short, Nathan R. Klaus, David G. Teschel, Paul J. Dofton, Justin L. Womeldorff, Michelle Smith, Peg Broughton, Caleb S. Litchfield
  • Publication number: 20230416638
    Abstract: Systems and methods to reduce pour point (PP) temperatures of fat-based compositions for use in transportation fuels. In one or more embodiments, methods and systems reduce the pour point of rendered fats using biologically-derived plant oils for effectively transporting the blended fat based compositions over long distances, thereby advantageously decreasing the heating and mixing requirements needed to maintain the compositional temperature above the pour point. In certain embodiments, the fat based composition comprises rendered animal fats, such as tallow in combination with distilled corn oil (DCO).
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Inventors: Daniel Z. Short, Nathan R. Klaus, David G. Teschel, Paul J. Dofton, Justin L. Womeldorff, Michelle Smith, Peg Broughton, Caleb S. Litchfield
  • Publication number: 20230383195
    Abstract: Systems and methods to separate water and remove solids from a pre-treated and unfiltered renewable feedstock at or separate from a refinery. Such systems and methods may be used to provide a reduced-contaminant and reduced-solid renewable feedstock for further refining.
    Type: Application
    Filed: May 31, 2023
    Publication date: November 30, 2023
    Inventors: Gregory A. Cantley, Paul J. Dofton
  • Patent number: 11802257
    Abstract: Systems and methods to reduce pour point (PP) temperatures of fat-based compositions for use in transportation fuels. In one or more embodiments, methods and systems reduce the pour point of rendered fats using biologically-derived plant oils for effectively transporting the blended fat based compositions over long distances, thereby advantageously decreasing the heating and mixing requirements needed to maintain the compositional temperature above the pour point. In certain embodiments, the fat based composition comprises rendered animal fats, such as tallow in combination with distilled corn oil (DCO).
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: October 31, 2023
    Assignee: MARATHON PETROLEUM COMPANY LP
    Inventors: Daniel Z. Short, Nathan R. Klaus, David G. Teschel, Paul J. Dofton, Justin L. Womeldorff, Michelle Smith, Peg Broughton, Caleb S. Litchfield
  • Publication number: 20230242837
    Abstract: Systems and methods to reduce pour point (PP) temperatures of fat-based compositions for use in transportation fuels. In one or more embodiments, methods and systems reduce the pour point of rendered fats using biologically-derived plant oils for effectively transporting the blended fat based compositions over long distances, thereby advantageously decreasing the heating and mixing requirements needed to maintain the compositional temperature above the pour point. In certain embodiments, the fat based composition comprises rendered animal fats, such as tallow in combination with distilled corn oil (DCO).
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Inventors: Daniel Z. Short, Nathan R. Klaus, David G. Teschel, Paul J. Dofton, Justin L. Womeldorff, Michelle Smith, Peg Broughton, Caleb S. Litchfield
  • Patent number: 11702601
    Abstract: Systems and methods to separate water and remove solids from a pre-treated and unfiltered renewable feedstock at or separate from a refinery. Such systems and methods may be used to provide a reduced-contaminant and reduced-solid renewable feedstock for further refining.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: July 18, 2023
    Assignee: MARATHON PETROLEUM COMPANY LP
    Inventors: Gregory A. Cantley, Paul J. Dofton
  • Publication number: 20220135449
    Abstract: Systems and methods to separate water and remove solids from a pre-treated and unfiltered renewable feedstock at or separate from a refinery. Such systems and methods may be used to provide a reduced-contaminant and reduced-solid renewable feedstock for further refining.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 5, 2022
    Applicant: MARATHON PETROLEUM COMPANY LP
    Inventors: Gregory A. Cantley, Paul J. Dofton