Patents by Inventor Frank Plavac

Frank Plavac 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).

  • Patent number: 8703679
    Abstract: A functional fluid comprising a major amount of an oil of lubricating viscosity, and an oil soluble amount of glycerol carbonate or an oil soluble amount of a borated glycerol.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: April 22, 2014
    Inventors: Yue-Rong Li, Frank Plavac, Rawls Frazier
  • Publication number: 20130123155
    Abstract: A functional fluid comprising a major amount of an oil of lubricating viscosity, and an oil soluble amount of glycerol carbonate or an oil soluble amount of a borated glycerol.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 16, 2013
    Applicant: Chevron Oronite Company LLC
    Inventors: Yue-Rong Li, Frank Plavac, Rawls Frazier
  • Patent number: 7414013
    Abstract: Sulfurized olefin compositions and compounds of the formula: wherein R1 is hydrogen or methyl; X is sulfur or oxygen; m is an integer from 1 to 9; and n is 0 or 1, and when n is 0 then R1 is methyl, and when n is 1 then R1 is hydrogen are disclosed. The resulting compounds are particularly the polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: August 19, 2008
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Frank Plavac
  • Publication number: 20050153850
    Abstract: Sulfurized olefin compositions and compounds of the formula: wherein R1 is hydrogen or methyl; X is sulfur or oxygen; m is an integer from 1 to 9; and n is 0 or 1, and when n is 0 then R1 is methyl, and when n is 1 then R1 is hydrogen are disclosed. The resulting compounds are particularly the polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Application
    Filed: November 23, 2004
    Publication date: July 14, 2005
    Inventors: Kenneth Nelson, Frank Plavac
  • Patent number: 6884855
    Abstract: Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: April 26, 2005
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Frank Plavac
  • Publication number: 20040152817
    Abstract: Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 5, 2004
    Applicant: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Frank Plavac
  • Patent number: 6368370
    Abstract: A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective detergent amount of a hydroxyalkyl-substituted amine which is the reaction product of: (a) a polyolefin epoxide derived from a branched chain polyolefin having an average molecular weight of about 400 to 5,000; and (b) an nitrogen-containing compound selected from ammonia, a monoamine having from 1 to 40 carbon atoms, and a polyamine having from 2 to about 12 amine nitrogen atoms and from 2 to about 40 carbon atoms.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: April 9, 2002
    Assignee: Chevron Oronite Company LLC
    Inventors: Edward T. Sabourin, Thomas F. Buckley, III, Curtis B. Campbell, Frank Plavac
  • Patent number: 6346129
    Abstract: A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an effective detergent amount of a hydroxyalkyl-substituted polyamine which is the reaction product of: (a) a polyolefin epoxide derived from a branched chain polyolefin having an average molecular weight of about 400 to 5,000; and (b) a polyamine having from 2 to about 12 amine nitrogen atoms and from 2 to about 40 carbon atoms.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: February 12, 2002
    Assignee: Chevron Oronite Company LLC
    Inventors: Edward T. Sabourin, Thomas F. Buckley, III, Curtis B. Campbell, Frank Plavac, Mary J. Tompkins
  • Patent number: 5752991
    Abstract: Very long chain alkylphenyl polyoxyalkylene amines having the formula: ##STR1## wherein R.sub.1 is an alkyl group having at least 40 carbon atoms; R.sub.2 and R.sub.3 are each independently hydrogen or lower alkyl having about 1 to about 2 carbon atoms and each R.sub.2 and R.sub.3 is independently selected in each --O--CHR.sub.2 --CHR.sub.3 -- unit;A is an amine moiety derived from ammonia, a primary alkyl monoamine having about 1 to 20 carbon atoms, a secondary dialkyl monoamine having about 1 to 20 carbon atoms in each alkyl group, or a polyamine having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms;x is an integer from about 1 to about 2; and y is an integer from about 5 to about 50.The very long chain alkylphenyl polyoxyalkylene amines of the present invention are useful as fuel additives for the prevention and control of engine deposits.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: May 19, 1998
    Assignee: Chevron Chemical Company
    Inventor: Frank Plavac
  • Patent number: 4904278
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: February 27, 1990
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac
  • Patent number: 4840744
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: June 20, 1989
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac, Timothy R. Erdman
  • Patent number: 4802893
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: February 7, 1989
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac
  • Patent number: 4798612
    Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides wherein one or more of the nitrogen of the polyamino moiety is substituted with: ##STR1## wherein R.sub.4 is alkylene of from 1 to 6 carbon atoms; m is an integer of from 0 to 2; R.sub.5 is alkylene of from 2 to 5 carbon atoms; p is an integer of from 1 to 100; R.sub.6 is selected from the group consisting of hydrogen and hydrocarbyl of from 1 to 30 carbon atoms; and with the proviso that if m is one or two then R.sub.6 is hydrogen.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: January 17, 1989
    Assignee: Chevron Research Company
    Inventors: Frank Plavac, Robert H. Wollenberg
  • Patent number: 4747965
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: May 31, 1988
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac
  • Patent number: 4747850
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: May 31, 1988
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac
  • Patent number: 4746446
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: May 24, 1988
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac, Timothy R. Erdman
  • Patent number: 4728451
    Abstract: Lubricating oil compositions containing additives for dispersancy and detergency are provided. The additives are poly(oxyalkylene) aminohydrocarbyloxyhydrocarbyl carbamates, also referred to as polyether aminoether carbamates.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 1, 1988
    Assignee: Chevron Research Company
    Inventor: Frank Plavac
  • Patent number: 4695291
    Abstract: Deposit control additives to maintain cleanliness in internal combustion engines are provided. The additives are hydrocarbyl-terminated poly(oxyalkylene) aminohydrocarbyloxyhydrocarbyl carbamates, also referred to as polyether aminoether carbamates.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: September 22, 1987
    Assignee: Chevron Research Company
    Inventor: Frank Plavac
  • Patent number: 4680129
    Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides wherein one or more of the nitrogen of the polyamino moiety is substituted with: ##STR1## wherein R.sub.4 is alkylene of from 1 to 6 carbon atoms; m is an integer of from 0 to 2; R.sub.5 is alkylene of from 2 to 5 carbon atoms; p is an integer of from 1 to 100; R.sub.6 is selected from the group consisting of hydrogen and hydrocarbyl of from 1 to 30 carbon atoms; and with the proviso that if m is one or two then R.sub.6 is hydrogen.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: July 14, 1987
    Assignee: Chevron Research Company
    Inventor: Frank Plavac
  • Patent number: 4631070
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are alkenyl or alkyl succinimides which have been modified by treatment with glycidol.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: December 23, 1986
    Assignee: Chevron Research Company
    Inventor: Frank Plavac