Patents by Inventor Michael R. Douglass
Michael R. Douglass 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: 10781397Abstract: A method for improving wear control, while maintaining or improving solubility and fuel efficiency, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component; and at least one metal salt of a carboxylic acid, as a minor component; wherein the metal salt of the carboxylic acid contains no sulfur or phosphorus; wherein the metal is selected from the group consisting of palladium (Pd), silver (Ag), gold (Au), zinc (Zn), and mixtures thereof; wherein the carboxylic acid is selected from the group consisting of an aliphatic carboxylic acid, a cycloaliphatic carboxylic acid, an aromatic carboxylic acid, and mixtures thereof; wherein the molar ratio of (zinc+palladium+silver+gold)/phosphorus of said formulated oil is greater than 1.0. The lubricating oils are useful in internal combustion engines.Type: GrantFiled: June 18, 2018Date of Patent: September 22, 2020Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Beatrice M. Gooding, Alan M. Schilowitz, Andrew R. Konicek, Douglas E. Deckman, Michael R. Douglass
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Patent number: 10316712Abstract: Described herein are lubricant compositions that include combinations of lubricant additives that are effective at improving the surface finish of a range of manufactured materials and equipment. In particular, friction modifiers and antiwear additives are employed to decrease surface roughness of additive manufactured (AM), e.g., 3D printed, materials and equipment in concert with maximizing energy efficiency.Type: GrantFiled: December 8, 2016Date of Patent: June 11, 2019Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Michael R. Douglass, David J. Baillargeon, Smruti A. Dance
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Publication number: 20180298301Abstract: A method for improving wear control, while maintaining or improving solubility and fuel efficiency, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component; and at least one metal salt of a carboxylic acid, as a minor component; wherein the metal salt of the carboxylic acid contains no sulfur or phosphorus; wherein the metal is selected from the group consisting of palladium (Pd), silver (Ag), gold (Au), zinc (Zn), and mixtures thereof; wherein the carboxylic acid is selected from the group consisting of an aliphatic carboxylic acid, a cycloaliphatic carboxylic acid, an aromatic carboxylic acid, and mixtures thereof; wherein the molar ratio of (zinc+palladium+silver+gold)/phosphorus of said formulated oil is greater than 1.0. The lubricating oils are useful in internal combustion engines.Type: ApplicationFiled: June 18, 2018Publication date: October 18, 2018Inventors: Beatrice M. GOODING, Alan M. SCHILOWITZ, Andrew R. KONICEK, Douglas E. DECKMAN, Michael R. DOUGLASS
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Publication number: 20180298302Abstract: A method for improving wear control, while maintaining or improving fuel efficiency, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and a mixture as a minor component of (i) at least one metal salt of a straight chain carboxylic acid, wherein the metal is selected from the group consisting of palladium (Pd), silver (Ag), gold (Au), zinc (Zn), and combinations thereof, and (ii) at least one metal salicylate salt, wherein the metal is calcium (Ca), magnesium (Mg) or combinations thereof, wherein the molar ratio of the total metal concentration from the salicylate salt divided by the total metal concentration from the straight chain carboxylic acid ranges from 0.1 to 40. The lubricating oils are useful in internal combustion engines.Type: ApplicationFiled: June 18, 2018Publication date: October 18, 2018Inventors: Beatrice M. GOODING, Alan M. SCHILOWITZ, Andrew R. KONICEK, Douglas E. DECKMAN, Michael R. DOUGLASS
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Patent number: 10077409Abstract: A lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. The lubricating oil base stock has a high temperature high shear (HTHS) viscosity of less than about 1.7 cP as determined by ASTM D4683, and a Noack volatility from about 15 to about 90 percent as determined by ASTM D5800. A lubricating oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. A method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein.Type: GrantFiled: December 20, 2016Date of Patent: September 18, 2018Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain, Kathleen K. Cooper, James T. Carey, Michael R. Douglass, Percy R. Kanga, Abhimanyu O. Patil, Satish Bodige, Kyle G. Lewis, Mark P. Hagemeister
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Publication number: 20180179463Abstract: Provided is a polyol ester base stock composition with reduced odor and volatility. The polyol ester back stock composition does not include C5 acid. More particularly, the polyol ester base stock includes the reaction product of: (a) a polyol represented by the formula R(OH)n wherein R is an aliphatic or a cyclo-aliphatic hydrocarbyl group and n is at least 2, and (b) a mixture of monocarboxylic acids comprising at least one linear acid selected from the group consisting of between C6 to C10 acids and at least one branched C6 acid, wherein the amount of C6 to C10 acids is at least 55 wt. % and the amount of the at least one branched C6 acid is 45 wt. % or less, based upon the total amount of said mixture of monocarboxylic acids. The polyol ester base stock is particularly suited for aviation turbine oils.Type: ApplicationFiled: December 14, 2017Publication date: June 28, 2018Inventors: Michael R. Douglass, Beth A. Fitch, Susan C. Ardito, Douglas E. Johnson
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Publication number: 20170183595Abstract: A lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. The lubricating oil base stock has a high temperature high shear (HTHS) viscosity of less than about 1.7 cP as determined by ASTM D4683, and a Noack volatility from about 15 to about 90 percent as determined by ASTM D5800. A lubricating oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. A method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein.Type: ApplicationFiled: December 20, 2016Publication date: June 29, 2017Inventors: Man Kit Ng, Halou Oumar-Mahamat, Hong Cheng, David A. Blain, Kathleen K. Cooper, James T. Carey, Michael R. Douglass, Percy R. Kanga, Abhimanyu O. Patil, Satish Bodige, Kyle G. Lewis, Mark P. Hagemeister
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Publication number: 20170175600Abstract: Described herein are lubricant compositions that include combinations of lubricant additives that are effective at improving the surface finish of a range of manufactured materials and equipment. In particular, friction modifiers and antiwear additives are employed to decrease surface roughness of additive manufactured (AM), e.g., 3D printed, materials and equipment in concert with maximizing energy efficiency.Type: ApplicationFiled: December 8, 2016Publication date: June 22, 2017Inventors: Michael R. Douglass, David J. Baillargeon, Smruti A. Dance
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Patent number: 8623795Abstract: The antiwear performance of turbine oils containing polymerized amine antioxidants and antiwear additives is maintained at or enhanced beyond the level as that of turbine oils containing monomeric amine antioxidants by employing as the antiwear additive a resorcinol bis(diphenylphosphate) (RDP). The deposit formation resistance performance of turbine oils containing monomeric and/or polymeric amine antioxidant is improved by employing RDP.Type: GrantFiled: July 26, 2011Date of Patent: January 7, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael R. Douglass, Douglas Eugene Johnson, Susan Ardito
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Patent number: 8618031Abstract: The deposit formation resistance performance of turbine oils containing amine antioxidants and antiwear additives is enhanced beyond the level of that of turbine oils containing tricresyl phosphate antiwear additive by employing as the antiwear additive a 4,4?-(Isopropylidenediphenyl)bis(diphenyl phosphate).Type: GrantFiled: July 26, 2011Date of Patent: December 31, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael R. Douglass, Douglas Eugene Johnson, Susan Ardito
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Patent number: 8569216Abstract: A Group IV/Group V lubricating composition providing improved antioxidation performance comprises from 5 wt. % to 40 wt. % of a Group V base oil component, such as alkylated naphthalene, at least 30 wt. % of a Group IV base oil component, such as one or more polyalphaolefin base stocks, and from 0.25 wt. % to 1.5 wt. % of a trithiophosphate-containing compound. The trithiophosphate-containing compound is preferably C30H57O7PS3. The lubricating composition includes not greater than 5 wt. % of a Group I, Group II, or Group III base oil component, and, preferably not greater than 10 ppm heavy metal component. The lubricating composition preferably has a kinematic viscosity of from 20 cSt to 1,000 cSt at 40° C. and a viscosity index (VI) of from 130 to 200.Type: GrantFiled: June 16, 2011Date of Patent: October 29, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
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Publication number: 20120322705Abstract: A Group IV/Group V lubricating composition providing improved antioxidation performance comprises from 5 wt. % to 40 wt. % of a Group V base oil component, such as alkylated naphthalene, at least 30 wt. % of a Group IV base oil component, such as one or more polyalphaolefin base stocks, and from 0.25 wt. % to 1.5 wt. % of a trithiophosphate-containing compound. The trithiophosphate-containing compound is preferably C30H57O7PS3. The lubricating composition includes not greater than 5 wt. % of a Group I, Group II, or Group III base oil component, and, preferably not greater than 10 ppm heavy metal component. The lubricating composition preferably has a kinematic viscosity of from 20 cSt to 1,000 cSt at 40° C. and a viscosity index (VI) of from 130 to 200.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: David A. Blain, Liehpao Oscar Farng, Eugenio Sanchez, Michael R. Douglass, Angela S. Galiano-Roth, James T. Carey
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Publication number: 20120142567Abstract: The antiwear performance of turbine oils containing polymerized amine antioxidants and antiwear additives is maintained at or enhanced beyond the level as that of turbine oils containing monomeric amine antioxidants by employing as the antiwear additive a resorcinol bis(diphenylphosphate) (RDP). The deposit formation resistance performance of turbine oils containing monomeric and/or polymeric amine antioxidant is improved by employing RDP.Type: ApplicationFiled: July 26, 2011Publication date: June 7, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Michael R. Douglass, Douglas Eugene Johnson, Susan Ardito
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Patent number: 7763949Abstract: A process for protecting a MEMS device used in a UV illuminated application from damage due to a photochemical activation between the UV flux and package gas constituents, formed from the out-gassing of various lubricants and passivants put in the device package to prevent sticking of the MEMS device's moving parts. This process coats the exposed surfaces of the MEMS device and package's optical window surfaces with a metal-halide film to eliminate this photochemical activation and therefore significantly extend the reliability and lifetime of the MEMS device.Type: GrantFiled: April 28, 2004Date of Patent: July 27, 2010Assignee: Texas Instruments IncorporatedInventors: Walter M. Duncan, Simon Joshua Jacobs, Michael R. Douglass, Richard O. Gale
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Publication number: 20100165314Abstract: A process for protecting a MEMS device used in a UV illuminated application from damage due to a photochemical activation between the UV flux and package gas constituents, formed from the out-gassing of various lubricants and passivants put in the device package to prevent sticking of the MEMS device's moving parts. This process coats the exposed surfaces of the MEMS device and package's optical window surfaces with a metal-halide film to eliminate this photochemical activation and therefore significantly extend the reliability and lifetime of the MEMS device.Type: ApplicationFiled: April 28, 2004Publication date: July 1, 2010Inventors: Walter M. Duncan, Simon Joshua Jacobs, Michael R. Douglass, Richard O. Gale
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Patent number: 7710635Abstract: System and method for reducing failures due to hinge memory in a microdisplay display system. A preferred embodiment includes setting the state of each micromirror in a digital micromirror device based on an image being displayed, recording a usage history for the micromirrors, and providing a sequence of states to each micromirror when the display system is in an inactive mode. The sequence of states provided to a micromirror is based on the micromirror's usage history. The operation of the micromirrors while a display system containing the digital micromirror device is not in active use can help to reverse or eliminate hinge memory, thereby extending the lifetime of the digital micromirror device.Type: GrantFiled: March 13, 2008Date of Patent: May 4, 2010Assignee: Texas Instruments IncorporatedInventors: Michael R. Douglass, Andrew B. Sontheimer, David J. Mehrl
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Patent number: 6746886Abstract: A process for protecting a MEMS device used in a UV illuminated application from damage due to a photochemical activation between the UV flux and package gas constituents, formed from the out-gassing of various lubricants and passivants put in the device package to prevent sticking of the MEMS device's moving parts. This process coats the exposed surfaces of the MEMS device and package's optical window surfaces with a metal-halide film to eliminate this photochemical activation and therefore significantly extend the reliability and lifetime of the MEMS device.Type: GrantFiled: March 18, 2002Date of Patent: June 8, 2004Assignee: Texas Instruments IncorporatedInventors: Walter M. Duncan, Simon Joshua Jacobs, Michael R. Douglass, Richard O. Gale
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Publication number: 20030016337Abstract: A process for protecting a MEMS device used in a UV illuminated application from damage due to a photochemical activation between the UV flux and package gas constituents, formed from the out-gassing of various lubricants and passivants put in the device package to prevent sticking of the MEMS device's moving parts. This process coats the exposed surfaces of the MEMS device and package's optical window surfaces with a metal-halide film to eliminate this photochemical activation and therefore significantly extend the reliability and lifetime of the MEMS device.Type: ApplicationFiled: March 18, 2002Publication date: January 23, 2003Inventors: Walter M. Duncan, Simon Joshua Jacobs, Michael R. Douglass, Richard O. Gale
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Patent number: 6204085Abstract: A method and system of reducing the permanent accumulated deformation of a deflectable member of a micromechanical device through thermal stabilization. The accumulated deformation is due to the repeated bending or twisting of a flexible component of the micromechanical deice typically the repetitive deformation of a flexible hinge connecting a rigid member to substrate. After the device is fabricated, passivated (316), and packaged (322), the packaged device is baked (326) at a temperature of at least 120° C. A 150° C. bake for 12 to 16 hours is preferred. Lower temperatures required longer baking periods.Type: GrantFiled: September 8, 1999Date of Patent: March 20, 2001Assignee: Texas Instruments IncorporatedInventors: Mark H. Strumpell, Judith C. Frederic, Michael R. Douglass