Patents by Inventor Juan Alberto Buitrago

Juan Alberto 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).

  • ANTI-WEAR ADDITIVE COMPOSITION AND LUBRICATING OIL COMPOSITION CONTAINING THE SAME
    Publication number: 20110028365
    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: January 29, 2010
    Publication date: February 3, 2011
    Inventor: Juan Alberto Buitrago
  • Anti-wear additive composition and lubricating oil composition containing the same
    Patent number: 7786059
    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: Grant
    Filed: December 21, 2004
    Date of Patent: August 31, 2010
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan Alberto Buitrago
  • Lubricating oil composition which decreases copper corrosion and method of making same
    Patent number: 7056871
    Abstract: An oil-soluble additive composition and lubricating oil composition containing the same, comprising an organic sulfur-containing extreme pressure additive; a thiadiazole, wherein the thiadiazole does not contain a polycarboxylate moiety and the amount of dimercaptothiadiazole is from about 0.1 wt % to about 10 wt %; an amino phosphorus compound; and an alkyl or alkenyl succinic anhydride, used to reduce the corrosion of yellow metal components which are present in axles and transmissions.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 6, 2006
    Assignee: Chevron Oronite Company LLC
    Inventor: Juan Alberto Buitrago
  • Lubricating oil composition which decreases copper corrosion and method of making same
    Publication number: 20040214730
    Abstract: An oil-soluble additive composition and lubricating oil composition containing the same, comprising an organic sulfur-containing extreme pressure additive; a thiadiazole, wherein the thiadiazole does not contain a polycarboxylate moiety and the amount of dimercaptothiadiazole is from about 0.1 wt % to about 10 wt %; an amino phosphorus compound; and an alkyl or alkenyl succinic anhydride, used to reduce the corrosion of yellow metal components which are present in axles and transmissions.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 28, 2004
    Applicant: Chevron Oronite Company LLC
    Inventor: Juan Alberto Buitrago