Patents by Inventor Carlos L. Cerda de Groote

Carlos L. Cerda de Groote 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).

  • Continuously variable transmission fluids comprising a combination of calcium-and magnesium-overbased detergents
    Patent number: 7737092
    Abstract: A composition suitable for use as a lubricant for a transmission includes an oil of lubricating viscosity; a dispersant; a calcium detergent; a magnesium detergent; and an inorganic phosphorus compound. At least one of the dispersant or detergent components is borated.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: June 15, 2010
    Assignee: The Lubrizol Corporation
    Inventors: William C. Ward, Jr., Carlos L. Cerda de Groote, Masahiko Ikeda, Denise R. Vermilya
  • Dispersants prepared from high polydispersity olefin polymers
    Patent number: 6500898
    Abstract: A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: December 31, 2002
    Assignee: The Lubrizol Corporation
    Inventors: John R. Johnson, James D. Burrington, Christopher J. Kolp, John K. Pudelski, Jeffry G. Dietz, Gregory R. McCullough, Charles K. Baumanis, Carlos L. Cerda de Groote
  • Dispersants prepared from high polydispersity olefin polymers
    Publication number: 20020161124
    Abstract: A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 31, 2002
    Inventors: John R. Johnson, James D. Burrington, Christopher J. Kolp, John K. Pudelski, Jeffry G. Dietz, Gregory R. McCullough, Charles K. Baumanis, Carlos L. Cerda de Groote
  • Dispersants prepared from high polydispersity olefin polymers
    Patent number: 6407170
    Abstract: A dispersant is prepared from an amine and a hydrocarbyl-substituted acylating agent, wherein the hydrocarbyl substituent is a polymerized olefin having a polydispersity {overscore (M)}w/{overscore (M)}n of greater than 5. Such polyolefin substituents are prepared by polymerization of olefins in the presence of a calcined catalyst comprising a partially or fully neutralized ammonium salt of a heteropolyacid.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: June 18, 2002
    Assignee: The Lubrizol Corporation
    Inventors: John R. Johnson, James D. Burrington, Christopher J. Kolp, John K. Pudelski, Jeffry G. Dietz, Gregory R. McCullough, Charles K. Baumanis, Carlos L. Cerda de Groote