Patents by Inventor Steven Gahlings
Steven Gahlings 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: 11221431Abstract: A sensor for monitoring CO2 in a fluid regardless of the phase properties of the fluid, i.e., regardless of whether the fluid contacting the window is a liquid water-based phase, a liquid oil-based phase, a mixture of liquid water and liquid oil-based phases, or a gas phase. The sensor includes an internal reflection window for contacting with the fluid. A mid-infrared light source directs a beam of mid-infrared radiation into the window and the beam is internal reflected at an interface between the window and the fluid. The reflected beam is passed through three narrow bandpass filters which preferentially transmit mid-infrared radiation over bands of wavelengths corresponding to absorbance peaks of water, oil and CO2. The amount of CO2 is determined from the intensities of the mid-infrared radiation passing through the three filters.Type: GrantFiled: January 12, 2021Date of Patent: January 11, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Go Fujisawa, Sheng Chao, Timothy Jones, Nathan Lawrence, Rolf Rustad, Li Jiang, Steven Gahlings
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Publication number: 20210165123Abstract: A sensor for monitoring CO2 in a fluid regardless of the phase properties of the fluid, i.e., regardless of whether the fluid contacting the window is a liquid water-based phase, a liquid oil-based phase, a mixture of liquid water and liquid oil-based phases, or a gas phase. The sensor includes an internal reflection window for contacting with the fluid. A mid-infrared light source directs a beam of mid-infrared radiation into the window and the beam is internal reflected at an interface between the window and the fluid. The reflected beam is passed through three narrow bandpass filters which preferentially transmit mid-infrared radiation over bands of wavelengths corresponding to absorbance peaks of water, oil and CO2. The amount of CO2 is determined from the intensities of the mid-infrared radiation passing through the three filters.Type: ApplicationFiled: January 12, 2021Publication date: June 3, 2021Inventors: Go Fujisawa, Sheng Chao, Timothy Jones, Nathan Lawrence, Rolf Rustad, Li Jiang, Steven Gahlings
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Patent number: 10944109Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.Type: GrantFiled: May 10, 2019Date of Patent: March 9, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
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Patent number: 10921482Abstract: A sensor for monitoring CO2 in a fluid regardless of the phase properties of the fluid, i.e., regardless of whether the fluid contacting the window is a liquid water-based phase, a liquid oil-based phase, a mixture of liquid water and liquid oil-based phases, or a gas phase. The sensor includes an internal reflection window for contacting with the fluid. A mid-infrared light source directs a beam of mid-infrared radiation into the window and the beam is internal reflected at an interface between the window and the fluid. The reflected beam is passed through three narrow bandpass filters which preferentially transmit mid-infrared radiation over bands of wavelengths corresponding to absorbance peaks of water, oil and CO2.Type: GrantFiled: September 9, 2015Date of Patent: February 16, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Go Fujisawa, Sheng Chao, Timothy Jones, Nathan Lawrence, Rolf Rustad, Li Jiang, Steven Gahlings
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Patent number: 10539500Abstract: An integrated approach for cleaning an active surface of a petrochemical sensor. Sensors in the petrochemical industry are often deployed in locations where they are prone to fouling. By heating the active surface fouling substances may be removed from the active surface. Heating the surface above a supercritical point of a fluid being sensed may create a fluid that may serve to clean the active surface. Limiting the duration of the applied heating and/or pulsing the heating may mitigate adverse effects of use of high temperatures. A doped active surface, such as a doped diamond window may be designed to have conductive areas in the window that may be used for resistive heating of the window.Type: GrantFiled: September 9, 2015Date of Patent: January 21, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Timothy Jones, Nathan Lawrence, Go Fujisawa, Sheng Chao, Steven Gahlings
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Patent number: 10409300Abstract: A method for changing a set point of a system where period of a dominant resonance of the system is determined, a change profile for the set point change is processed; a time period for the set point change based on the period of the dominant resonance in order to minimize excitation of the dominant resonance is also processed; and the set point change is actioned according to the processed change profile and the time period.Type: GrantFiled: June 26, 2014Date of Patent: September 10, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Benjamin Peter Jeffryes, John Cook, Steven Gahlings
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Publication number: 20190267626Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.Type: ApplicationFiled: May 10, 2019Publication date: August 29, 2019Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
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Publication number: 20170242149Abstract: A sensor for monitoring CO2 in a fluid regardless of the phase properties of the fluid, i.e., regardless of whether the fluid contacting the window is a liquid water-based phase, a liquid oil-based phase, a mixture of liquid water and liquid oil-based phases, or a gas phase. The sensor includes an internal reflection window for contacting with the fluid. A mid-infrared light source directs a beam of mid-infrared radiation into the window and the beam is internal reflected at an interface between the window and the fluid. The reflected beam is passed through three narrow bandpass filters which preferentially transmit mid-infrared radiation over bands of wavelengths corresponding to absorbance peaks of water, oil and CO2.Type: ApplicationFiled: September 9, 2015Publication date: August 24, 2017Inventors: Go Fujisawa, Sheng Chao, Timothy Jones, Nathan Lawrence, Rolf Rustad, Li Jiang, Steven Gahlings
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Publication number: 20160133932Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance.Type: ApplicationFiled: November 6, 2015Publication date: May 12, 2016Inventors: Hanpu Liang, Nathan Lawrence, Timothy Jones, Steven Gahlings, Christine Jarvis, Wen Rong Li, Rogerio Tadeu Ramos, Vladimir Hernandez Solis
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Patent number: D995388Type: GrantFiled: October 5, 2022Date of Patent: August 15, 2023Inventors: Steven Gahlings, Andrew Crawford
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Patent number: D1010420Type: GrantFiled: October 5, 2022Date of Patent: January 9, 2024Assignee: Caterpillar SARLInventors: Steven Gahlings, Andrew Crawford