Patents by Inventor Alexander B. Boffa
Alexander B. Boffa 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).
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Patent number: 10781394Abstract: This invention encompasses lubricating oil compositions comprising a base oil, a biodiesel fuel and a Mannich condensation product. A method for inhibiting viscosity increase in a diesel engine fueled at least in part with a biodiesel fuel is also described.Type: GrantFiled: October 25, 2016Date of Patent: September 22, 2020Assignees: CHEVRON ORONITE TECHNOLOGY B.V., CHEVRON ORONITE COMPANY LLCInventors: Menno Anton Stefan Moniz, Walter Alexander Hartgers, Richard Hogendoorn, Moussa Echankouki, Peter Kleijwegt, Alexander B. Boffa, John Robert Miller
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Publication number: 20190270947Abstract: Provided is a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity, (b) a dispersant polymethacrylate (DPMA) VII; (c) a non-dispersant ethylene-based olefin copolymer viscosity index improver; (d) a molybdenum containing compound; and (e) a minor amount of a salicylate detergent.Type: ApplicationFiled: February 28, 2019Publication date: September 5, 2019Inventors: Richard Hogendoorn, Jeroen Augustinus van Leeuwen, Alexander B. Boffa
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Publication number: 20190270946Abstract: Provided is a lubricating oil comprising: (a) a major amount of an oil of lubricating viscosity, (b) a dispersant polymethacrylate (DPMA) VII, (c) a non-dispersant ethylene-based olefin copolymer viscosity index improver, (d) a magnesium containing detergent; wherein the lubricating oil composition is substantially free of molybdenum containing element. Also provided is a method for improving friction and reducing wear in an internal combustion engine using said engine lubricating oil composition.Type: ApplicationFiled: February 28, 2019Publication date: September 5, 2019Inventors: Richard Hogendoorn, Jeroen Augustinus van Leeuwen, Alexander B. Boffa
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Publication number: 20180112146Abstract: This invention encompasses lubricating oil compositions comprising a base oil, a biodiesel fuel and a Mannich condensation product. A method for inhibiting viscosity increase in a diesel engine fueled at least in part with a biodiesel fuel is also described.Type: ApplicationFiled: October 25, 2016Publication date: April 26, 2018Inventors: Menno Anton Stefan Moniz, Walter Alexander Hartgers, Richard Hogendoorn, Moussa Echankouki, Peter Kleijwegt, Alexander B. Boffa, John Robert Miller
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Patent number: 9523061Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having greater than 400 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: GrantFiled: December 20, 2013Date of Patent: December 20, 2016Assignees: Chevron Oronite Company LLC, Chevron U.S.A. Inc.Inventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Patent number: 9365793Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorous content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a dispersed, hydrated, alkali metal borate and at least one phosphorous-containing compound wherein the total phosphorous employed in the composition is no more than about 0.08 weight percent based on the total weight of the composition.Type: GrantFiled: December 18, 2012Date of Patent: June 14, 2016Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Patent number: 9303229Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 400 ppm of boron; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: GrantFiled: December 11, 2013Date of Patent: April 5, 2016Assignees: Chevron U.S.A. Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Patent number: 9193931Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 600 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having no more than about 800 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of about 5:1 to about 500:1.Type: GrantFiled: December 20, 2013Date of Patent: November 24, 2015Assignees: Chevron Oronite Company LLC, Chevron U.S.A. Inc.Inventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Patent number: 9018148Abstract: A method for screening a lubricating oil composition having at least one base oil of lubricating viscosity and at least one lubricating oil additive is provided, the method comprising the steps of (a) inputting into a computational device an amount of each of the at least one lubricating oil additive, based on the total weight of the lubricating oil composition and, optionally, a value of at least one property associated with each of the at least one base oil of lubricating viscosity; (b) computing a prediction of at least one lubricating oil composition property-determining test result for the lubricating oil composition; (c) computing a cost for the lubricating oil composition; and (d) outputting the results. Also provided are systems and computer program devices for screening lubricating oil compositions.Type: GrantFiled: April 28, 2005Date of Patent: April 28, 2015Assignee: Cherron Oronite Company LLCInventor: Alexander B Boffa
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Patent number: 8703677Abstract: Provided herein are lubricating oil compositions for high performance engines comprising a Group III base oil and a combination of ester base stocks, wherein the combination comprises (i) an ester base stock having a kinematic viscosity at 100° C. of about 2-10 cSt, (ii) an ester base stock having a kinematic viscosity at 100° C. of about 10 to 50 cSt, and (iii) an ester base stock having a kinematic viscosity at 100° C. of greater than about 100 cSt. The lubricating oil composition can further comprise at least one additive. Methods of making and using the lubricating oil compositions are also described.Type: GrantFiled: December 21, 2007Date of Patent: April 22, 2014Assignees: Chevron Japan Ltd, Chevron Oronite Company LLCInventors: Alexander B. Boffa, Satoshi Hirano, Mark Louis Sztenderowicz, Kenji Takeoka
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Publication number: 20140106998Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having greater than 400 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicants: Chevron U.S.A. Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Publication number: 20140106999Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 600 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having no more than about 800 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of about 5:1 to about 500:1.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicants: Chevron U.S.A. Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Publication number: 20140100146Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 400 ppm of boron; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicants: Chevron U.S.A. Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Publication number: 20130157910Abstract: A lubricating oil additive composition comprising a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400; a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and at least one polyalkenyl succinimideType: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: Chevron Oronite Company LLCInventors: Yue-Rong Li, Alexander B. Boffa
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Publication number: 20130137616Abstract: The present invention provides a low phosphorus lubricating oil composition containing a mixture of zinc dithiophosphates in a certain ratio surprisingly yields improved lead corrosion. The synergistic combination of mixed zinc dithiophosphates containing a zinc primary dialkyl dithiophosphate, zinc secondary dialkyl dithiophosphate and zinc diaryl dithiophosphate in a respective ratio, based on the phosphorus content, of the zinc primary dialkyl dithiphosphate to zinc secondary dialkyl dithiophosphate from about 2:1 to about 1:2 and the ratio of the mixture of zinc primary dialkyl dithiophosphate and zinc secondary dialkyl dithiophosphate to zinc diaryl dithiophosphate from about 6:1 to about 1:1. When used in a lubricating oil composition having a total phosphorus content less than about 0.06 wt %, based on the total weight of the lubricating oil composition to lubricate internal combustion engines. The mixture of zinc dithiophosphates greatly reduces lead corrosion.Type: ApplicationFiled: January 22, 2013Publication date: May 30, 2013Applicant: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Publication number: 20130123154Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorous content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a dispersed, hydrated, alkali metal borate and at least one phosphorous-containing compound wherein the total phosphorous employed in the composition is no more than about 0.08 weight percent based on the total weight of the composition.Type: ApplicationFiled: December 18, 2012Publication date: May 16, 2013Applicant: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Publication number: 20120184473Abstract: Provided herein are lubricating oil compositions comprising a major amount of a base oil, at least one oil-soluble molybdenum compound and a zinc dialkyldithiophosphate compound, wherein the molybdenum content derived from the molybdenum compound is at least 10 ppm based on the total weight of the lubricating oil composition and the phosphorus content derived from the zinc dialkyldithiophosphate compound is about 200 to 500 ppm based on the total weight of the lubricating oil composition. The lubricating oil composition can further comprise at least one additive. Methods of making and using the lubricating oil compositions are also described.Type: ApplicationFiled: March 23, 2012Publication date: July 19, 2012Inventors: Alexander B. Boffa, Kenji Takeoka
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Publication number: 20120145116Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having greater than 400 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: ApplicationFiled: February 17, 2012Publication date: June 14, 2012Applicants: Chevron U.S.A. Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck
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Publication number: 20120145114Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 400 ppm of boron; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having, at least about 1100 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of less than or equal to about 4:1.Type: ApplicationFiled: February 17, 2012Publication date: June 14, 2012Applicants: CHEVRON U.S.A. INC., CHEVRON ORONITE COMPANY LLCInventors: KENNETH D. NELSON, ALEXANDER B. BOFFA, WILLIAM M. KLEISER, STEPHEN D. STULTS, JAMES A. MCGEEHAN, WIM VAN DAM, RICHARD E. CHERPECK
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Publication number: 20120145115Abstract: A lubricating oil composition having a sulfur content of up to about 0.4 wt. % and a sulfated ash content of up to about 0.5 wt. % as determined by ASTM D874 is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) at least one oil-soluble or dispersed oil-stable boron-containing compound having no more than about 600 ppm of boron, based upon the total mass of the composition; and (c) at least one oil-soluble or dispersed oil-stable molybdenum-containing compound having no more than about 800 ppm of molybdenum, based upon the total mass of the composition; wherein the lubricating oil composition has a ratio of sulfur to molybdenum of about 5:1 to about 500:1.Type: ApplicationFiled: February 17, 2012Publication date: June 14, 2012Applicants: Chevron U.S.A, Inc., Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan, Wim Van Dam, Richard E. Cherpeck