Patents by Inventor Brandon Knouse

Brandon Knouse 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).

  • Thiophosphoric acid products for antiwear additives
    Patent number: 11958875
    Abstract: A mixture including a thiophosphoric acid product suitable for preparing organometallic and/or ashless antiwear additives having improved copper corrosion performance. The thiophosphoric acid product is distilled and recovered as a condensate of the distillation and having a low level of active sulfur.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: April 16, 2024
    Assignee: Afton Chemical Corporation
    Inventors: Brandon Knouse, David Edwards, Magdalena Makowska, Gregory James
  • Antiwear system for improved copper corrosion
    Patent number: 11884893
    Abstract: An oil-soluble ashless antiwear additive and a lubricating composition including the ashless antiwear additive having improved copper corrosion performance obtained by reacting an organic hydroxy compound with phosphorus pentasulfide to form a reaction product, distilling the reaction product and recovering a condensate, and reacting the condensate with an unsaturated carboxylic acid to form an oil-soluble phosphorus antiwear additive.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: January 30, 2024
    Assignee: Afton Chemical Corporation
    Inventors: Brandon Knouse, David Edwards, Magdalena Makowska, Gregory James, Robert Mccovick
  • Antiwear system for improved copper corrosion
    Patent number: 11884892
    Abstract: An organometallic phosphorus-providing antiwear additive and a lubricating composition including the organometallic phosphorus-providing antiwear additive having improved copper corrosion performance obtained by reacting an organic hydroxy compound with phosphorus pentasulfide to form a reaction product, distilling the reaction product and recovering a condensate, and neutralizing the condensate with a basic or neutral metal compound including one or more of a metal oxide, a metal hydroxide, or a metal carbonate to form the organometallic phosphorus-providing antiwear additive or salt thereof.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: January 30, 2024
    Assignee: Afton Chemical Corporation
    Inventors: Brandon Knouse, David Edwards, Magdalena Makowska, Keith Hayes, Gregory James