Patents Examined by Aiqun Li
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Patent number: 12224435Abstract: According to a storage battery of an embodiment includes a first battery module and a second battery module connected in parallel with the first battery module. The number of first cells connected in series in the first battery module is M, and the number of second cells connected in series in the second battery module is N. When an open circuit voltage at SOC=X % of the first cells and the second cells are Va1 (X) and Va2 (X), respectively, the voltages of the battery modules are M×Va1 (X)<N×Va2 (X) in the range where the SOC of the cell is 0% to 30%, and M×Va1 (X)>N×Va2 (X) in the range where the SOC of the cell is 70% to 100%.Type: GrantFiled: January 20, 2022Date of Patent: February 11, 2025Assignee: Kabushiki Kaisha ToshibaInventors: Ryosuke Yagi, Yasuhiro Harada, Norio Takami, Tetsuya Sasakawa, Norihiro Yoshinaga, Yuta Kanai
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Patent number: 12221578Abstract: A wellbore fluid comprising an aqueous base fluid and a plurality of nanoparticles suspended in the aqueous base fluid. The nanoparticles are present in the wellbore fluid in an amount effective to have an effect of increasing the density by at least 0.2 lb/gal.Type: GrantFiled: October 12, 2022Date of Patent: February 11, 2025Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Hui Zhang, Xia Wei, Brandi Katherine Price Hoelscher, Steven Young
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Patent number: 12215177Abstract: Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionalizing the (meth)acrylic polymer or copolymer in the presence of a hindered amine base. When appropriately functionalized, the macroparticulates may be used to sequester a contaminant from a substance in need of contaminant remediation, such as produced water or flowback water from a wellbore job site. Reclaimed water obtained from the macroparticulates may be utilized to form a treatment fluid. The macroparticulates may be located within a continuous flow line, particularly within a removable cartridge, to promote removal of at least one contaminant from a substance in need of contaminant remediation.Type: GrantFiled: July 9, 2020Date of Patent: February 4, 2025Assignee: COUNTERTRACE LLCInventors: Robert E. Hanes, Jr., Richard L Pettys, David M. Headley, Paul T. Hoopingarner, Karen A. Scherer
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Patent number: 12206072Abstract: A lithium secondary battery including a positive electrode, a negative electrode having a negative electrode current collector that faces the positive electrode, and a non-aqueous electrolyte, wherein lithium metal deposits on the negative electrode during charge, and the lithium metal dissolves from the negative electrode into the non-aqueous electrolyte during discharge. The non-aqueous electrolyte includes an organic compound having a redox potential of 0 V or more and 4 V or less vs Li/Li+.Type: GrantFiled: July 25, 2019Date of Patent: January 21, 2025Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Takuya Sadakane
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Patent number: 12199267Abstract: In the present invention, this positive electrode is provided with: a collector; and a composite material layer that is formed on at least one surface of the collector. The composite material layer includes a particulate aggregate formed from inorganic substance particles which do not occlude or emit Li, a conductive material, and a binding material for binding the inorganic particles and the conductive material. According to an exemplary embodiment, the aggregate is present closer to the collector side at least with respect to the thickness-direction center of the composite material layer, and accounts for at least 1.3 vol % with respect to the volume of the composite material layer.Type: GrantFiled: July 25, 2019Date of Patent: January 14, 2025Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuji Oura, Yuki Tokuda
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Patent number: 12187960Abstract: In one embodiment, a method for recovery of an oil from a porous medium comprises contacting the porous medium with an aqueous nanofluid, solubilizing oil from the porous medium via the nanoparticles to form a dispersion comprising the oil and the aqueous nanofluid, and collecting at least some of the dispersion. The aqueous nanofluid may contain a combination of amphiphilic quantum dots and hydrophilic quantum dots, in a continuous phase. At least 90% of the quantum dot nanoparticles may have an aspect ratio of from 1:1 to 1:6. In another embodiment, a method for recovery of an oil from a porous medium includes adding quantum dots to foaming surfactants to enhance foam lamella stability under reservoir conditions and provide conformance and mobility control in porous media and hydraulic fractures.Type: GrantFiled: November 1, 2021Date of Patent: January 7, 2025Assignee: UNIVERSITY OF WYOMINGInventors: Lamia Goual, Kaustubh Shriram Rane, Bingjun Zhang
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Patent number: 12187955Abstract: Methods and treatments fluids for treating a wellbore. One example method introduces the treatment fluid into the wellbore. The treatment fluid comprises an aqueous fluid, an aminopolycarboxylic acid, a nanoparticle dispersed, and an organic solvent. The treatment fluid has a pH in a range between about 5 to about 9. The method further includes contacting a rock surface in the subterranean formation; wherein at least a portion of the rock surface is coated with a hydrocarbon. The treatment fluid removes a portion of the hydrocarbon from the rock surface and alters the rock surface to be water-wet.Type: GrantFiled: October 7, 2021Date of Patent: January 7, 2025Assignee: Halliburton Energy Services, Inc.Inventors: Antonio Recio, III, Enrique A. Reyes, Denise N. Benoit, Aaron M. Beuterbaugh
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Patent number: 12180419Abstract: A process for the conversion of methanol to olefins includes the steps of passing a feedstock comprising methanol to a fluidized bed reactor in contact with a catalyst to produce an olefin product, wherein the process at least partially deactivates the catalyst to form an at least partially deactivated catalyst; and passing spent catalyst from said at least partially deactivated catalyst to a regenerator for regeneration thereby forming regenerated catalyst and returning activated catalyst from said regenerated catalyst to said reactor via a regenerated catalyst line. An oxygen volume content in the gas-phase component at the outlet of the regenerated catalyst pipeline is controlled to be less than 0.1 percent, preferably less than 0.05% and more preferably less than 0.01% on the regenerated catalyst pipeline.Type: GrantFiled: July 2, 2021Date of Patent: December 31, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPECInventors: Yingcheng Li, Xinning Bao, Weidong Zhang, Ou Sha, Xinyue Wu, Jun Jin
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Patent number: 12180420Abstract: A method of reducing the viscosity of a crude oil, the method including adding to the crude oil (i) a surfactant compound including at least two hydrophobic groups wherein the resultant mixture has a water content of less than 10 vol %.Type: GrantFiled: December 21, 2022Date of Patent: December 31, 2024Assignee: INNOSPEC OIL FIELD CHEMICALS LLCInventors: Ian Malcolm McRobbie, Joseph Sustayta, Luis Angel Ziga, Jr.
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Patent number: 12173228Abstract: A reversible gel composition including nanosilica and polyethylene oxide, the nanosilica and polyethylene oxide present at concentrations operable to allow for the reversible gel composition to be a flowable liquid at pH greater than about 8 and operable to allow for the reversible gel composition to be a substantially solid gel at pH less than about 8.Type: GrantFiled: December 15, 2022Date of Patent: December 24, 2024Assignee: Saudi Arabian Oil CompanyInventors: Peter Boul, Abeer Mohammad Al-Olayan, Diana Rasner
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Patent number: 12160015Abstract: A conductive film, a fabrication method of the conductive film, and a lithium-ion battery (LIB) are provided. The fabrication method includes: S10: selecting a support layer, and plating a first metal layer on upper and lower surfaces of the support layer, respectively; S20: compounding a first film on a surface of one of the first metal layers, and compounding a second film on a surface of the other one of the first metal layers; S30: compounding a third film on surfaces of the first film and the second film, and etching a plurality of circular holes penetrating through the third film and the second film; S40: plating a second metal layer on an outer surface of the third film and an inner wall of the circular hole; S50: fabricating a composite film; and S60: plating a third metal layer on upper and lower surfaces of the composite film.Type: GrantFiled: June 10, 2021Date of Patent: December 3, 2024Assignee: CHONGQING JIMAT NEW MATERIAL TECHNOLOGY CO., LTD.Inventors: Shiwei Zang, Wenqing Liu
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Patent number: 12142754Abstract: A method of fabricating nanocomposite anode material embodying a lithium titanate (LTO)-multi-walled carbon nanotube (MWNT) composite intended for use in a lithium-ion battery includes providing multi-walled carbon nanotube (MWNTs), including nanotube surfaces, onto which functional oxygenated carboxylic acid moieties are arranged, generating 3D flower-like, lithium titanate (LTO) microspheres, including thin nanosheets and anchoring the acid-functionalized MWNTs onto surfaces of the 3D LTO microspheres by ?-? interaction strategy to realize the nanocomposite anode material.Type: GrantFiled: July 6, 2021Date of Patent: November 12, 2024Assignee: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORKInventors: Stanislaus Wong, Lei Wang, Coray McBean, Amy C. Marschilok, Kenneth Takeuchi, Esther S. Takeuchi
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Patent number: 12136743Abstract: The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery including the same. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamidosulfonic acid, a (meth)acrylamidosulfonic acid salt or a combination thereof; first inorganic particles; and second inorganic particles, wherein the average diameter of the first inorganic particles is 400 nm to 600 nm, and the average diameter of the second inorganic particles is smaller than the average diameter of the first inorganic particles.Type: GrantFiled: August 9, 2019Date of Patent: November 5, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Jungyoon Lee, Gain Kim, Yangseob Kim, Yongkyoung Kim, Dongwan Seo, Yeonjoo Choi, Hyeonsun Choi
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Patent number: 12134728Abstract: A wellbore fluid composition is provided that includes an aqueous base fluid and at least one ethylene ammonium salt having a number average molecular weight in a range of 250 to 500 grams per mole. A method of drilling a wellbore is also provided. the method includes circulating an aqueous drilling fluid into the wellbore while drilling, wherein the aqueous drilling fluid includes at least one ethylene ammonium salt. The aqueous drilling fluid further includes a pH value from 6.5 to 7.5. The method of drilling a wellbore further includes recovering shale cuttings while maintaining wellbore stability.Type: GrantFiled: April 8, 2022Date of Patent: November 5, 2024Assignee: SAUDI ARABIAN OIL COMPANYInventors: Vikrant Wagle, Abdullah Al-Yami, Omprakash Pal, Ali Al-Safran, Mohammad Alharthi, Sara Alkhalaf
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Patent number: 12129428Abstract: The present disclosure provides methods and compositions for controlling asphaltenes in a subterranean formation. The compositions may include silica, a polymer, and optionally a charged surfactant. The compositions may also include a solvent or other additives. The methods may include injecting the compositions into subterranean formations and inhibiting asphaltene precipitation.Type: GrantFiled: December 21, 2021Date of Patent: October 29, 2024Assignee: ChampionX LLCInventors: Jeremy Wayne Bartels, Christopher Alexander Russell, Duy T. Nguyen, Manojkumar Ramnikalal Bhandari, Rebecca Michele Lucente-Schultz
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Patent number: 12122977Abstract: A lubricant composition includes (a) a hydrocarbon oil including at least 30% wt of isoparaffins, based on the total weight of the hydrocarbon oil, and (b) an alkoxylated natural oil. A method of using the lubricant composition in a water-based composition, in particular a water-based mud, to improve the lubricity and/or to reduce the foaming properties of the water-based composition is also disclosed.Type: GrantFiled: July 12, 2021Date of Patent: October 22, 2024Assignee: TOTALENERGIES ONETECHInventors: Jean-Yves Lansot, Benjamin Swoboda, Jayachandran Perumalsamy
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Patent number: 12107262Abstract: Provided is a positive electrode for secondary battery including: a first positive electrode mixture layer formed on at least one surface of a positive electrode current collector and including a first positive electrode active material; and a second positive electrode mixture layer formed on the first positive electrode mixture layer and including a second positive electrode active material wherein the first positive electrode active material and the second positive electrode active material include a lithium nickel-based transition metal oxide represented by the following Chemical Formula 1, and wherein the first positive electrode mixture layer contains a flake graphite as an additive. LiaNi1-bMbO2-xAx??(1) in the above formula, M is at least one selected from the group consisting of Ti, Mg, Al, Zr, Mn and Co, A is an oxygen-substituted halogen, 1.00?a?1.05, 0<b?0.2, and 0?x?0.01.Type: GrantFiled: November 25, 2020Date of Patent: October 1, 2024Assignee: LG Energy Solution, Ltd.Inventors: Byounghyo Jung, Ilhong Kim, Minchul Jang, Insung Uhm
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Patent number: 12098324Abstract: The present disclosure provides for a sandstone-containing oil reservoir additive composition that includes (a) a nonionic wettability alteration agent having Formula (I): and (b) an injection fluid. For Formula (I), R is an alkyl residue from a branched secondary alcohol initiator, where R can have a carbon number of C4 to C10, x is from 3 to 10 and y is from 1 to 20. The injection fluid can be selected from the group consisting of sea water, engineered water, injection brine, produced brine or combinations thereof. The nonionic wettability agent in the sandstone reservoir additive composition can be from 0.01 weight percent (wt %) to 20 wt % based on the total weight of the sandstone reservoir additive composition. The sandstone-containing oil reservoir additive composition can be used in enhance oil recovery operations, such as a waterflooding operation or a carbon dioxide flooding operation.Type: GrantFiled: February 17, 2020Date of Patent: September 24, 2024Assignee: Dow Global Technologies LLCInventors: Amit Katiyar, Troy E. Knight, Pramod D. Patil, Neeraj Rohilla
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Patent number: 12080848Abstract: Provided is a solid electrolyte membrane including a support member, such as a porous sheet, embedded in an electrolyte membrane, wherein the support member is coated with an inhibiting material for inhibiting growth of lithium dendrite. Thus, the solid electrolyte membrane has excellent physical strength, such as puncture strength, and improved durability. In addition, the solid electrolyte membrane has an effect of inhibiting lithium dendrite growth. Thus, when the solid electrolyte membrane is applied to a lithium metal battery including lithium metal as a negative electrode material, there is provided an effect of improving the life characteristics of the battery.Type: GrantFiled: March 18, 2020Date of Patent: September 3, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jung-Pil Lee, Eun-Bee Kim, Ji-Hoon Ryu, Suk-Woo Lee
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Patent number: 12068479Abstract: The purpose of the present invention is to provide a winding-type nonaqueous electrolyte secondary battery which is capable of minimizing degradation of charge-discharge cycle characteristics.Type: GrantFiled: February 14, 2020Date of Patent: August 20, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Shigeki Moriya, Nobuhiro Sakitani, Takaharu Morikawa