Patents by Inventor Robert Choi
Robert Choi 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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Publication number: 20250134405Abstract: A portable device for quantitative measurement of tissue autoregulation and neurovascular coupling via portable measurement of blood flow, oxygenation, metabolism, and/or EEG signals and methods for using said device. The device may comprise a body and a plurality of legs pivotably attached to the body. The plurality of legs may comprise at least one reference electrode leg and at least one measurement electrode leg for electrical measurement, and an optical detection fiber leg and at least one optical source fiber leg for optical blood flow, oxygenation, and metabolism measurement. The present invention is additionally directed to a portable device for blood flow measurement and therapeutic photobiomodulation. The device may comprise a body and a plurality of legs. The plurality of legs may comprise at least one optical detection fiber leg and at least one optical source fiber leg, and at least one leg for therapeutic photobiomodulation.Type: ApplicationFiled: January 6, 2025Publication date: May 1, 2025Inventors: Yama Akbari, Robert H. Wilson, Christian Crouzet, Thomas Milner, Bernard Choi
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Patent number: 12254051Abstract: A method for a crawl algorithm includes obtaining a plurality of web pages for a web crawler to crawl. The method also includes determining an available bandwidth for the web crawler. The method includes, for each respective web page of the plurality of web pages, determining a respective crawl value for the respective web page based on the available bandwidth and determining that the respective crawl value of the respective web page satisfies a threshold value. The method includes, in response to determining that the respective crawl value of the respective web page satisfies the threshold value, updating the respective web page in a cache memory.Type: GrantFiled: September 25, 2023Date of Patent: March 18, 2025Assignee: Google LLCInventors: Linhai Qiu, Robert Istvan Busa-Fekete, Julian Ulf Zimmert, Andras Gyorgy, Hao Shen, Hyomin Choi, Sharmila Vijay, Li Xiao
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Publication number: 20250084018Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: ApplicationFiled: November 25, 2024Publication date: March 13, 2025Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12245115Abstract: In exemplary embodiments, methods and systems are provided for downloading of geographic information. In accordance with an exemplary embodiment, a method is provided that includes the following steps: identifying, via a processor using map data, a plurality of geographic areas in which a vehicle is to travel along a selected route to a destination; identifying, via the processor using the map data, a plurality of map tiles corresponding to the plurality of geographic areas, such that each of the plurality of map tiles corresponds to a different one of the plurality of geographic areas; obtaining data access information for each of the plurality of geographic areas; and determining, via the processor, a prioritized sequence for downloading the plurality of map tiles, based on the data access information for the plurality of geographic areas.Type: GrantFiled: June 8, 2022Date of Patent: March 4, 2025Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gabriel Tayoung Choi, Anthony W Cullen, Morgan Douglas Dykshorn, Nolan Foster, Matthew Robert Wallace
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Patent number: 12243819Abstract: Integrated chips include first lines, formed on an underlying substrate. Spacers are formed conformally on sidewalls of the plurality of lines. Etch stop remnants are positioned on the sidewalls of the plurality of lines, between the spacers and the underlying substrate. Second lines are formed on the underlying substrate, between respective pairs of adjacent first lines.Type: GrantFiled: July 26, 2022Date of Patent: March 4, 2025Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Brent Alan Anderson, Lawrence A. Clevenger, Christopher J. Penny, Kisik Choi, Nicholas Anthony Lanzillo, Robert Robison
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Publication number: 20250041860Abstract: Microfluidic chips and cartridges and systems that include such chips are disclosed. In some embodiments, the chips include a microfluidic channel disposed in a substrate with the channel comprising at least one expansion region. The channel is configured to generate a vortex within the at least one expansion region in response to fluid through the microfluidic channel to trap cells or particles. The substrate in which the channel is formed may be relatively rigid to resist deformation.Type: ApplicationFiled: September 30, 2024Publication date: February 6, 2025Inventors: Elodie Sollier, Michael Lee Kochersperger, Robert F. Englert, James Che, Kuo-Wei Huang, Michael Boyce-Jacino, Anatasia Neddersen, Anna Passernig, Bruce Richardson, Insang Choi
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Patent number: 12213770Abstract: A portable device for quantitative measurement of tissue autoregulation and neurovascular coupling via portable measurement of blood flow, oxygenation, metabolism, and/or EEG signals and methods for using said device. The device may comprise a body and a plurality of legs pivotably attached to the body. The plurality of legs may comprise at least one reference electrode leg and at least one measurement electrode leg for electrical measurement, and an optical detection fiber leg and at least one optical source fiber leg for optical blood flow, oxygenation, and metabolism measurement. The present invention is additionally directed to a portable device for blood flow measurement and therapeutic photobiomodulation. The device may comprise a body and a plurality of legs. The plurality of legs may comprise at least one optical detection fiber leg and at least one optical source fiber leg, and at least one leg for therapeutic photobiomodulation.Type: GrantFiled: July 15, 2021Date of Patent: February 4, 2025Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Yama Akbari, Robert H. Wilson, Christian Crouzet, Thomas Milner, Bernard Choi
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Publication number: 20250040231Abstract: Gallium nitride (GaN) three-dimensional integrated circuit technology is described. In an example, an integrated circuit structure includes a layer including gallium and nitrogen, a plurality of gate structures over the layer including gallium and nitrogen, a source region on a first side of the plurality of gate structures, a drain region on a second side of the plurality of gate structures, the second side opposite the first side, and a drain field plate above the drain region wherein the drain field plate is coupled to the source region. In another example, a semiconductor package includes a package substrate. A first integrated circuit (IC) die is coupled to the package substrate. The first IC die includes a GaN device layer and a Si-based CMOS layer.Type: ApplicationFiled: October 14, 2024Publication date: January 30, 2025Inventors: Han Wui THEN, Marko RADOSAVLJEVIC, Pratik KOIRALA, Nicole K. THOMAS, Paul B. FISCHER, Adel A. ELSHERBINI, Tushar TALUKDAR, Johanna M. SWAN, Wilfred GOMES, Robert S. CHAU, Beomseok CHOI
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Publication number: 20250019780Abstract: The present invention is directed to a method of determining DNA concentration in a DNA virus. The invention features three basic steps. The initial step is the specific capture of a defined amount of virus capsid particles on a first solid phase. The second step is lysis of the capsid to release the virus DNA from the first solid phase into a lysis solution. After separating the lysis solution from the first solid phase, the third step is contacting the lysis solution with a second solid phase. The second solid phase captures total DNA derived from the captured capsid. The present invention is also directed to a method for measuring the percentage of full virus capsid, comprising first determining the ssDNA concentration in viruses, and then converting the ssDNA concentration to percentage of full virus capsid using a calibration curve having DNA concentration plotted against standards of % of full capsids.Type: ApplicationFiled: September 27, 2024Publication date: January 16, 2025Inventors: Robert F. Zuk, Samuel Yang, Alex Ho Fai Lee, Indrani Chakraborty, Pu Li, Wai Choi
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Patent number: 12180154Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: GrantFiled: April 26, 2022Date of Patent: December 31, 2024Assignee: Kellogg Brown & Root LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12168638Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: GrantFiled: December 19, 2023Date of Patent: December 17, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20240318089Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: ApplicationFiled: June 6, 2024Publication date: September 26, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 12037553Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: GrantFiled: April 26, 2022Date of Patent: July 16, 2024Assignee: Kellogg Brown & Root LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20240116837Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: ApplicationFiled: December 19, 2023Publication date: April 11, 2024Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20240059462Abstract: Drink bottles, or drink containers with cap assemblies that include a drink spout. The drink spout is pivotally coupled to a base of the cap assembly and includes a mouthpiece. In some embodiments, the cap assembly includes a dust cover configured to at least partially cover the mouthpiece when the mouthpiece and pivotal mount are in the stowed position. In some embodiments, the cap assembly includes a dispensing guard configured to at least partially cover the dispensing outlet when the mouthpiece and pivotal mount are in the stowed position. In some embodiments, the cap assembly includes a handle, which may include at least one guard for the drink spout and/or mouthpiece.Type: ApplicationFiled: November 2, 2023Publication date: February 22, 2024Inventors: Robert CHOI, Barley A. FORSMAN, Jeremy GALTEN
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Patent number: 11884608Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: GrantFiled: April 26, 2022Date of Patent: January 30, 2024Assignee: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Patent number: 11851250Abstract: Drink bottles, or drink containers with cap assemblies that include a drink spout. The drink spout is pivotally coupled to a base of the cap assembly and includes a mouthpiece. In some embodiments, the cap assembly includes a dust cover configured to at least partially cover the mouthpiece when the mouthpiece and pivotal mount are in the stowed position. In some embodiments, the cap assembly includes a dispensing guard configured to at least partially cover the dispensing outlet when the mouthpiece and pivotal mount are in the stowed position. In some embodiments, the cap assembly includes a handle, which may include at least one guard for the drink spout and/or mouthpiece.Type: GrantFiled: December 29, 2021Date of Patent: December 26, 2023Assignee: CAMELBAK PRODUCTS, LLCInventors: Robert Choi, Barley A. Forsman, Jeremy Galten
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Publication number: 20220340504Abstract: A first stream containing 1,3-butadiene, C4 acetylenes, and optionally C3 hydrocarbons, is mixed with a portion of the liquid recycle stream from a C4 acetylene hydrogenation reactor containing hydrogenated C4 acetylenes and a molecular hydrogen-containing stream, the resulting mixed stream is then fed to a C4 acetylene hydrogenation reactor to selectively hydrogenate the C4 acetylenes in the crude butadiene stream without appreciable 1,3-butadiene conversion.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20220340501Abstract: A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
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Publication number: 20220340826Abstract: A system for hydrogenation C3 and C4 acetylenes contained within a hydrocarbon stream generated in a stream cracker unit where a debutanizer is placed upstream of a depropanizer for more economical processing of the hydrocarbon stream to produce lighter hydrocarbons, where the system requires only one stripper tower downstream of hydrogenation to remove residual hydrogen.Type: ApplicationFiled: April 26, 2022Publication date: October 27, 2022Applicant: KELLOGG BROWN & ROOT LLCInventors: David Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki