Patents by Inventor Juan A. Buitrago

Juan A. Buitrago 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).

  • Publication number: 20190264128
    Abstract: Provided is a lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a detergent system, and a method of improving brake and clutch capacity while maintaining low torque variation at low speed of a tractor hydraulic system.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Inventors: Juan A. Buitrago, Kevin J. Chase, Joshua B. James
  • Patent number: 8536102
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 17, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Publication number: 20130149191
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Patent number: 8389449
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: March 5, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan A. Buitrago
  • Publication number: 20110092401
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Application
    Filed: December 17, 2010
    Publication date: April 21, 2011
    Inventor: Juan A. Buitrago
  • Patent number: 7871965
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: January 18, 2011
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan Buitrago
  • Publication number: 20080300155
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Application
    Filed: August 7, 2008
    Publication date: December 4, 2008
    Inventor: Juan A. Buitrago
  • Publication number: 20070179068
    Abstract: The present invention relates to a lubricating oil composition comprising a major amount of base oil of lubricating viscosity and the following additives in the following amounts based on a total amount of the lubricating oil composition: (A) 0.1 to 10 wt.% of a succinic acid ester, (B) 0.01 to 2 wt.% of a phosphorous acid ester, (C) 0.1 to 5 wt.% of an amide compound which is a reaction product obtained by reaction of a linear or branched, saturated or unsaturated monovalent aliphatic acid having 8 to 22 carbon atoms, urea, and polyalkylenepolyamine, (D) 0.0 1 to 2 wt.% of an overbased metal containing detergent, and (E) 0.01 to 1 wt.% of a corrosion inhibitor.
    Type: Application
    Filed: December 18, 2006
    Publication date: August 2, 2007
    Inventors: Michio Shiga, Tomotsugu Shiroi, Himiko Takayama, Juan Buitrago
  • Publication number: 20060135379
    Abstract: An anti-wear additive composition comprising at least one acid phosphite compound and at least one neutral phosphite compound, wherein the ratio of the acid phosphite to the neutral phosphite is from about 1.0:10.7 to about 2.0:1.0, and lubricating oil compositions containing the same.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 22, 2006
    Inventor: Juan Buitrago
  • Publication number: 20060135375
    Abstract: An anti-shudder additive composition comprising at least one neutral phosphite and at least one phosphorous-free hydrocarbyl substituted succinic dispersant selected from the group consisting of a hydrocarbyl bissuccinimide and a hydrocarbyl substituted succinic ester of a polyol and mixtures thereof, wherein the additive is used in transmission fluids to decrease shudder.
    Type: Application
    Filed: December 21, 2004
    Publication date: June 22, 2006
    Inventors: Juan Buitrago, Rawls Frazier, Tony Banh
  • Publication number: 20040214729
    Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Inventor: Juan A. Buitrago
  • Patent number: 6737387
    Abstract: Disclosed are dispersed hydrated potassium borate compositions, as well as additive packages and finished oil compositions comprising the same. The dispersed hydrated potassium borate compositions of the invention exhibit low turbidity and the finished oil compositions exhibit improved wear performance under high temperature conditions.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: May 18, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, Kenneth D. Nelson, Juan A. Buitrago
  • Publication number: 20040002428
    Abstract: Disclosed is a method for reducing wear and metal fatigue during high temperature operation of a gear set, which method comprises operating the gear set with a dispersed hydrated sodium borate composition.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventors: James J. Harrison, Kenneth D. Nelson, Juan A. Buitrago
  • Publication number: 20030211950
    Abstract: Disclosed are dispersed hydrated potassium borate compositions, as well as additive packages and finished oil compositions comprising the same. The dispersed hydrated potassium borate compositions of the invention exhibit low turbidity and the finished oil compositions exhibit improved wear performance under high temperature conditions.
    Type: Application
    Filed: May 2, 2002
    Publication date: November 13, 2003
    Inventors: James J. Harrison, Kenneth D. Nelson, Juan A. Buitrago