Patents by Inventor Brent K. Lok
Brent K. Lok 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: 9732287Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: GrantFiled: March 24, 2014Date of Patent: August 15, 2017Assignee: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K. Lok, Kathy A. Helling, Steven K. Lee, Ryan Joseph Schexnaydre
-
Patent number: 8956581Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: GrantFiled: September 19, 2013Date of Patent: February 17, 2015Assignee: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K. Lok, Kathy A. Helling, Stephen K. Lee
-
Publication number: 20140202924Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: ApplicationFiled: March 24, 2014Publication date: July 24, 2014Applicant: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K. Lok, Kathy A. Helling, Stephen K. Lee, Ryan Joseph Schexnaydre
-
Patent number: 8784643Abstract: We provide a base stock comprising hydrocarbons with consecutive numbers of carbon atoms, wherein the base stock has a boiling range from 388 to 538° C., a VI from 105 to less than 130, and a Noack volatility from 5 to 11.5 wt % or a CCS VIS at ?25° C. from 2000 to 4000 mPa·s. We also provide a base stock slate comprising the base stock and an additional base stock having an additional boiling range from 371 to 496° C., and other properties.Type: GrantFiled: November 30, 2012Date of Patent: July 22, 2014Assignee: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K Lok, Kathy Ann Helling, Steven Lee, Ryan Joseph Schexnaydre, Susan Marjorie Abernathy
-
Patent number: 8658018Abstract: A lubricant base oil blend having a wt % Noack volatility less than 29, comprising a) a light base oil fraction having a kinematic viscosity at 100° C. between 1.5 and 3.6, and a wt % Noack volatility both between 0 and 100 and less than a Noack Volatility Factor, and b) a petroleum-derived base oil fraction. A process to make the lubricant base oil blend having a wt % Noack volatility less than 29. Also, a pour point depressed lubricant base oil blend having a Brookfield viscosity at ?40° C. of less than 18,000 cP, comprising the light base oil fraction, a petroleum-derived base oil fraction, and a pour point depressant.Type: GrantFiled: December 20, 2006Date of Patent: February 25, 2014Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Brent K. Lok, Shuibo Xie, Stephen J. Miller
-
Publication number: 20140023562Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: ApplicationFiled: September 19, 2013Publication date: January 23, 2014Applicant: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K. Lok, Kathy A. Helling, Stephen K. Lee, Ryan Joseph Schexnaydre
-
Patent number: 8562819Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: GrantFiled: June 10, 2009Date of Patent: October 22, 2013Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, Kathy A. Helling, Steve K. Lee, Ryan J. Schexnaydre
-
Patent number: 8480879Abstract: A process for producing an API Group I base oil, comprising: blending a lower quality base oil that does not meet API Group I specifications with a Fischer-Tropsch derived distillate fraction having defined pour point, viscosity index and Oxidator B, and isolating an API Group I base oil that has improved defined properties. A process for producing an API Group I base oil, consisting essentially of: (a) selecting a lower quality base oil not meeting API Group I specifications, having defined saturates, viscosity index and Oxidator BN; and (b) blending the lower quality base oil with a Group II base oil and a Fischer-Tropsch derived base oil. A process for improving the lubricating properties of a lower quality base oil. Also, a process for operating a base oil plant.Type: GrantFiled: March 13, 2008Date of Patent: July 9, 2013Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, David C. Kramer, John O'Brien, Stephen J. Miller
-
Publication number: 20130090272Abstract: We provide a base stock comprising hydrocarbons with consecutive numbers of carbon atoms, wherein the base stock has a boiling range from 388 to 538° C., a VI from 105 to less than 130, and a Noack volatility from 5 to 11.5 wt % or a CCS VIS at ?25° C. from 2000 to 4000 mPa·s. We also provide a base stock slate comprising the base stock and an additional base stock having an additional boiling range from 371 to 496° C. and other properties.Type: ApplicationFiled: November 30, 2012Publication date: April 11, 2013Applicant: Chevron U.S.A. Inc.Inventors: John Michael Rosenbaum, Brent K. Lok, Kathy Ann Helling, Steven Lee, Ryan Joseph Schexnaydre, Susan Marjorie Abernathy
-
Patent number: 8318001Abstract: We provide a base oil comprising hydrocarbons with consecutive numbers of carbon atoms. The base oil has a boiling range from 700 to 925° F. (371 to 496° C.), a VI from 105 to 119, and either a Noack volatility less than 18 wt % or a CCS VIS at ?25° C. less than 1500 mPa·s. The base oil may have a ratio of Noack Volatility to CCS VIS at ?25° C. multiplied by 100 from 0.80 to 1.55.Type: GrantFiled: June 10, 2009Date of Patent: November 27, 2012Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, Kathy A. Helling, Ryan J. Schexnaydre, Scott C. Deskin, Susan M. Abernathy
-
Patent number: 8192612Abstract: A base oil slate comprising three or more base oil grades having kinematic viscosities at 100° C. between about 1.8 cSt and about 30 cSt prepared from a waxy feed wherein each of the base oil grades is a base oil blend which comprises: (a) between about 0.1 wt. % and about 99.9 wt. % of a distillation fraction prepared in light block mode operation; and (b) between about 0.1 wt. % and about 99.9 wt. % of a distillation fraction prepared in medium block mode operation. Also, a base oil slate prepared from a waxy feed, said product slate comprising 3 or more base oil grades, each base oil grade having a kinematic viscosity at 100° C. between about 1.8 cSt and about 30 cSt and a VI greater than an amount defined by the equation VI=Ln(Vis100, in cSt)+95, wherein Ln(Vis100, in cSt) is the natural log of the kinematic viscosity at 100° C.Type: GrantFiled: January 28, 2010Date of Patent: June 5, 2012Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, Philip E. Quinnett, Christopher Allen Simmons
-
Patent number: 7994104Abstract: A process to make a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than a Noack Volatility Factor (NVF), wherein the Noack Volatility Factor is defined by the equation: 900×(Kinematic Viscosity at 100° C.)?2.8?15. The process comprises hydroisomerization dewaxing a waxy feed in a series of two or more reactors, and recovering the light base oil fraction having a low wt % Noack volatility.Type: GrantFiled: January 28, 2010Date of Patent: August 9, 2011Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Brent K. Lok, Shuibo Xie, Stephen J. Miller
-
Patent number: 7981270Abstract: The present invention relates to an extra light hydrocarbon liquid derived from highly paraffinic wax. This extra light hydrocarbon liquid is suitable for use as a lubricant additive diluent oil in oil soluble additive concentrates. This extra light hydrocarbon liquid derived from highly paraffinic wax has a viscosity of between about 1.0 and 3.5 cSt at 100° C. and a Noack volatility of less than 50 weight % and comprises greater than 3 weight % molecules with cycloparaffinic functionality and less than 0.30 weight percent aromatics. The extra light hydrocarbon liquid makes an excellent lubricant additive diluent oil because it has low volatility, low viscosity, good additive solubility, and excellent solubility in lubricant base oil stocks. The present invention also relates to finished lubricants comprising the oil soluble additive concentrates made with the extra light hydrocarbon liquid and finished lubricants comprising the oil soluble additive concentrates.Type: GrantFiled: February 14, 2006Date of Patent: July 19, 2011Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, Joseph M. Pudlak
-
Patent number: 7846880Abstract: A lubricant, comprising a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than a Noack Volatility Factor (NVF), wherein the Noack Volatility Factor is defined by the equation; 900×(Kinematic Viscosity at 100° C.)?2.8?15, and optionally one or more additional additives. A process to make the light base oil fraction, comprising hydroisomerization dewaxing a waxy feed in a series of two or more reactors, and recovering the light base oil fraction having a low wt % Noack volatility. Also, a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than the NVF, made by the process of hydroisomerization dewaxing a waxy feed in a series of reactors.Type: GrantFiled: December 20, 2006Date of Patent: December 7, 2010Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Brent K. Lok, Shuibo Xie, Stephen J. Miller
-
Publication number: 20100219101Abstract: A process to make a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than a Noack Volatility Factor (NVF), wherein the Noack Volatility Factor is defined by the equation: 900×(Kinematic Viscosity at 100° C.)?2.8?15. The process comprises hydroisomerization dewaxing a waxy feed in a series of two or more reactors, and recovering the light base oil fraction having a low wt % Noack volatility.Type: ApplicationFiled: January 28, 2010Publication date: September 2, 2010Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Brent K. Lok, Shuibo Xie, Stephen J. Miller
-
Publication number: 20100219100Abstract: A base oil slate comprising three or more base oil grades having kinematic viscosities at 100° C. between about 1.8 cSt and about 30 cSt prepared from a waxy feed wherein each of the base oil grades is a base oil blend which comprises: (a) between about 0.1 wt. % and about 99.9 wt. % of a distillation fraction prepared in light block mode operation; and (b) between about 0.1 wt. % and about 99.9 wt. % of a distillation fraction prepared in medium block mode operation. Also, a base oil slate prepared from a waxy feed, said product slate comprising 3 or more base oil grades, each base oil grade having a kinematic viscosity at 100° C. between about 1.8 cSt and about 30 cSt and a VI greater than an amount defined by the equation VI=Ln(Vis100, in cSt)+95, wherein Ln(Vis100, in cSt) is the natural log of the kinematic viscosity at 100° C.Type: ApplicationFiled: January 28, 2010Publication date: September 2, 2010Inventors: JOHN M. ROSENBAUM, BRENT K. LOK, PHILIP E. QUINNETT, CHRISTOPHER ALLEN SIMMONS
-
Patent number: 7708878Abstract: A process for producing a product slate, which includes at least three base oil grades having kinematic viscosities at 100° C. within the range between about 1.8 cSt and 30 cSt, from a waxy feed having an initial boiling point of about 340° C. or less and a final boiling point of about 560° C. or higher, said process comprising (a) isomerizing at least a portion of the waxy feed, whereby the amount of isoparaffins present are increased; (b) distilling a first portion of the isomerized waxy feed in light block mode operation into at least three base oil fractions having different boiling ranges; (c) distilling a second portion of the isomerized waxy feed in medium block mode operation into at least three base oil fractions having different boiling ranges; and (d) blending at least one base oil fraction produced from light block mode with at least one base oil fraction produced from medium block mode to produce a lubricating base oil blend meeting a target value for at least one pre-selected property.Type: GrantFiled: March 10, 2005Date of Patent: May 4, 2010Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Brent K. Lok, Philip E. Quinnett, Christopher Allen Simmons
-
Publication number: 20100105591Abstract: There is provided a finished lubricant, comprising: a) a major amount of hydroisomerized Fischer-Tropsch wax, Fischer-Tropsch oligomerized olefins, or mixture thereof; and b) between about 0.10 and about 5 wt % of a solubility improver having an aniline point less than 10° C.; wherein the finished lubricant passes the 4 hour TORT B rust test.Type: ApplicationFiled: September 24, 2009Publication date: April 29, 2010Inventors: John M. Rosenbaum, Brent K. Lok, Kathy A. Helling, Ryan J. Schexnaydre, Scott C. Deskin
-
Publication number: 20100078355Abstract: We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at ?25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.Type: ApplicationFiled: June 10, 2009Publication date: April 1, 2010Inventors: John M. Rosenbaum, Brent K. Lok, Kathy A. Helling, Steve K. Lee, Ryan J. Schexnaydre
-
Publication number: 20100078354Abstract: We provide a base stock comprising hydrocarbons with consecutive numbers of carbon atoms, wherein the base stock has a boiling range from 388 to 538° C., a VI from 105 to less than 120, and a Noack volatility from 6.6 to 11.5 wt % or a CCS VIS at ?25° C. from 2500 to 4500 mPa·s. We also provide a base stock slate comprising the base stock and an additional base stock having an additional boiling range from 371 to 496° C., and other properties.Type: ApplicationFiled: June 10, 2009Publication date: April 1, 2010Inventors: John M. Rosenbaum, Brent K. Lok, Kathy A. Helling, Steve K. Lee, Ryan J. Schexnaydre, Susan M. Abernathy