Patents by Inventor William R. Ruhe

William R. Ruhe 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).

  • Lubricating oil additive composition and method of making the same
    Patent number: 8455568
    Abstract: A post-treated polymeric dispersant which comprises reacting (I) a post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid or an aromatic polycarboxylic anhydride or an aromatic polycarboxylic acid ester and (II) an oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: June 4, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: William R. Ruhe, Jr.
  • Preparation of a sulfurized molybdenum amide complex and additive compositions having low residual active sulfur
    Patent number: 8183189
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions derived from a process for preparing a sulfurized oil soluble molybdenum complex having reduced active sulfur comprising: reacting an acidic molybdenum compound with an amide derived from a carboxylic acid component an polyamine component in a ratio from 2:1 to 1:1; there after sulfurizing to provide a sulfurized oil soluble molybdenum which is subsequently treated with at least one compound capable of reacting with the active sulfur of step b).
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 22, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Qunlai Chen, Man Hon Tsang, Gaurav Bhalla, William R. Ruhe, Jr.
  • Reduced color molybdenum-containing composition and a method of making same
    Patent number: 8076275
    Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 13, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Anatoli Onopchenko
  • Lubricating oil additive composition and method of making the same
    Patent number: 8067347
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound, with at least one aliphatic compound, and with at least one aromatic compound.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: November 29, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Casey D. Stokes
  • Lubricating oil additive composition and method of making the same
    Patent number: 7928044
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic compound.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: April 19, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, William R. Ruhe, Jr.
  • PREPARATION OF A SULFURIZED MOLYBDENUM AMIDE COMPLEX AND ADDITIVE COMPOSITIONS HAVING LOW RESIDUAL ACTIVE SULFUR
    Publication number: 20110077180
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions derived from a process for preparing a sulfurized oil soluble molybdenum complex having reduced active sulfur comprising: reacting an acidic molybdenum compound with an amide derived from a carboxylic acid component an polyamine component in a ratio from 2:1 to 1:1; there after sulfurizing to provide a sulfurized oil soluble molybdenum which is subsequently treated with at least one compound capable of reacting with the active sulfur of step b).
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Qunlai Chen, Man Hon Tsang, Gaurav Bhalla, William R. Ruhe, JR.
  • Lubricating oil additive composition and method of making the same
    Patent number: 7858566
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound, and with at least one polyether aliphatic compound.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: December 28, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Casey D. Stokes
  • Lubricating oil additive composition and method of making the same
    Patent number: 7820604
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aliphatic amine compound.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 26, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Casey D. Stokes
  • Lubricating oil additive composition and method of making the same
    Patent number: 7820605
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 26, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, William R. Ruhe, Jr.
  • Lubricating oil additive composition and method of making the same
    Patent number: 7816309
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 19, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, William R. Ruhe, Jr.
  • Lubricating oil additive composition and method of making the same
    Patent number: 7745541
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic amine.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: June 29, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Casey D. Stokes
  • Lubricating oil additive composition and method of making the same
    Patent number: 7745542
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aromatic amine.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: June 29, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: William R. Ruhe, Jr., Casey D. Stokes, James A. Gray
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20100160192
    Abstract: An oil-soluble lubricating oil additive composition prepared by a process which comprises reacting a succinimide, succinamide or mixtures thereof with a first post-treating agent, thereby producing an initial post-treated product which is reacted with a second post-treating agent.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Inventor: William R. Ruhe, JR.
  • FRICTION MODIFIERS AND/OR WEAR INHIBITORS DERIVED FROM HYDROCARBYL AMINES AND CYCLIC CARBONATES
    Publication number: 20100160198
    Abstract: A lubricating oil composition comprising a major amount of base oil of lubricating viscosity and a minor amount of an additive comprising the reaction product obtained by reacting a cyclic carbonate and a hydrocarbyl amine having the formula: R1R2NH in which R1 is hydrogen, or a hydrocarbyl group containing 1 to 40 carbon atoms, and R2 is a hydrocarbyl group containing 1 to 40 carbon atoms.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Inventor: William R. Ruhe, JR.
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20090270531
    Abstract: A post-treated polymeric dispersant which comprises reacting (I) a post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid or an aromatic polycarboxylic anhydride or an aromatic polycarboxylic acid ester and (II) an oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Inventor: William R. Ruhe, JR.
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20080113888
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound, and with at least one polyether aliphatic compound.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 15, 2008
    Inventors: William R. Ruhe, Jr., Casey D. Stokes
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20080113889
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound, with at least one aliphatic compound, and with at least one aromatic compound.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 15, 2008
    Inventors: William R. Ruhe, Casey D. Stokes
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20080103236
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventors: Casey D. Stokes, William R. Ruhe
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20080103074
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aromatic compound.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventors: Casey D. Stokes, William R. Ruhe
  • LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD OF MAKING THE SAME
    Publication number: 20080103076
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one polyether aliphatic amine compound.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventors: William R. Ruhe, Casey D. Stokes