Patents by Inventor Weihua Jin
Weihua Jin 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: 20230201249Abstract: The composition inhibits severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via competitive binding to SARS-CoV-2 spike protein. The composition includes a plurality of sulfated glycosaminoglycans which bind to SARS-CoV-2 spike protein, preventing binding to and uptake by host cells. The sulfated glycosaminoglycans, including N-, 2-O, 3-O, or 6-O sulfate groups, or combinations thereof, include heparins and fucoidans, such as those isolated from brown seaweed. The compositions show antiviral activity, with EC50 as low as 0.08 ?M, and low cytotoxicity, making it promising for clinical use. While established SARS-CoV-2 treatments such as remdesivir need to be administered intravenously, the compositions discussed herein are advantageously capable to being delivered as a nasal spray, metered dose inhaler, oral delivery, etc.Type: ApplicationFiled: April 2, 2021Publication date: June 29, 2023Inventors: Robert John LINHARDT, So-Young KIM, Weihua JIN, Jonathan Seth DORDICK, Fuming ZHANG, Seok-Joon KWON, Paul S. KWON, Keith FRASER
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Patent number: 10975006Abstract: Para-xylene production processes are disclosed, with such processes being integrated with extractive distillation or other separation to effectively separate, for example to remove and recover, ethylbenzene and other components that co-boil with the isomers of xylene. This allows for xylene isomerization, downstream of the separation of para-xylene from its other isomers, to be operated under milder conditions (e.g., liquid phase, absence of added hydrogen) without the need for ethylbenzene conversion. The associated decreased yields of byproducts such as light gases and non-aromatic hydrocarbons, together with the generation of purified ethylbenzene having value for styrene monomer production, can significantly improve overall process economics.Type: GrantFiled: July 19, 2019Date of Patent: April 13, 2021Assignees: SCG Chemicals Co., Ltd., Sulzer Management AGInventors: Zhongyi Ding, Sachin Joshi, Weihua Jin
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Patent number: 10657696Abstract: An interactive avatar display system provides a computer-generated view of a virtual space including an avatar that moves in the virtual space in response to movements of the user that are sensed by sensors. The number of sensed movements is less than the number of degrees of freedom of avatar movement. The interactive avatar display system computes an array of accelerations to apply to movable body parts of the avatar and computes the array of accelerations by solving equations of motions from masses of the movable body parts and an array of forces computed from an array of inverse dynamics force values for the movable body parts and one or both of an array of balance control force values or an array of locomotion control force values, taking into account a set of constraints for the avatar, and possible also environmental objects in the virtual space.Type: GrantFiled: December 13, 2017Date of Patent: May 19, 2020Assignee: DeepMotion, Inc.Inventors: Weihua Jin, Kaichuan He
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Publication number: 20200024216Abstract: Para-xylene production processes are disclosed, with such processes being integrated with extractive distillation or other separation to effectively separate, for example to remove and recover, ethylbenzene and other components that co-boil with the isomers of xylene. This allows for xylene isomerization, downstream of the separation of para-xylene from its other isomers, to be operated under milder conditions (e.g., liquid phase, absence of added hydrogen) without the need for ethylbenzene conversion. The associated decreased yields of byproducts such as light gases and non-aromatic hydrocarbons, together with the generation of purified ethylbenzene having value for styrene monomer production, can significantly improve overall process economics.Type: ApplicationFiled: July 19, 2019Publication date: January 23, 2020Inventors: Zhongyi DING, Sachin JOSHI, Weihua JIN
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Patent number: 10308567Abstract: Methods and processes for producing paraxylene from catalytic cracking hydrocarbons, particularly C4 and C5+ streams, are disclosed. Each of the processing steps may be tailored to the overall objective of high paraxylene yield from a relative inexpensive feedstock.Type: GrantFiled: March 14, 2013Date of Patent: June 4, 2019Assignee: GTC Technology US LLCInventors: Weihua Jin, Zhongyi Ding, Mircea Cretoiu, Joseph C. Gentry, Mark Lockhart, Calambur Shyamkumar, Pinti Wang
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Patent number: 10131595Abstract: The inventive process is directed to the production of xylenes through integration of aromatics methylation and transalkylation. This integrated process maximizes the production of xylenes and eliminates or minimizes the production of benzene.Type: GrantFiled: March 14, 2013Date of Patent: November 20, 2018Assignee: GTC Technology US LLCInventors: Zhongyi Ding, Weihua Jin, Joseph C. Gentry, Mircea Cretoiu
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Publication number: 20180165864Abstract: An interactive avatar display system provides a computer-generated view of a virtual space including an avatar that moves in the virtual space in response to movements of the user that are sensed by sensors. The number of sensed movements is less than the number of degrees of freedom of avatar movement. The interactive avatar display system computes an array of accelerations to apply to movable body parts of the avatar and computes the array of accelerations by solving equations of motions from masses of the movable body parts and an array of forces computed from an array of inverse dynamics force values for the movable body parts and one or both of an array of balance control force values or an array of locomotion control force values, taking into account a set of constraints for the avatar, and possible also environmental objects in the virtual space.Type: ApplicationFiled: December 13, 2017Publication date: June 14, 2018Inventors: Weihua Jin, Kaichuan He
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Patent number: 9362566Abstract: An anode composite material for lithium ion battery and a preparation method thereof. The composite material is a composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4, wherein 0.95?a?1.1, 0.95?b?1.1, and M is at least one of Fe, Co, Ni and Mn. The content of at least one of SiCO, SiCNO, SiCN and SiBCN in the anode composite material is in a range of 1-20 wt % of the total weight of the composite material. The composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4 is obtained by adding LiaMbPO4 into at least one organosilicon polymer of polysiloxane, polysilazane, and polyborosilazane, and then curing, crosslinking, and pyrolyzing. Compared with LiaMbPO4, the composite material has a notable improvement in electrochemistry performance and tap density.Type: GrantFiled: December 20, 2011Date of Patent: June 7, 2016Assignee: GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALSInventors: Shigang Lu, Surong Kan, Xiangjun Zhang, Weihua Jin
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Patent number: 9040746Abstract: Various embodiments of the present invention generally disclose systems and processes for the conversion of a feed stream comprising at least one C8 aromatic into a product stream comprising isophthalic acid and purified terephthalic acid (IPA/TA).Type: GrantFiled: March 18, 2009Date of Patent: May 26, 2015Assignee: GTC Technology US, LLCInventors: George A. Ball, Joseph G. Gentry, Joseph P. Weller, Zhongyi Ding, Weihua Jin
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Publication number: 20140346410Abstract: An anode composite material for lithium ion battery and a preparation method thereof. The composite material is a composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4, wherein 0.95?a?1.1, 0.95?b?1.1, and M is at least one of Fe, Co, Ni and Mn. The content of at least one of SiCO, SiCNO, SiCN and SiBCN in the anode composite material is in a range of 1-20 wt % of the total weight of the composite material. The composite material formed by compounding at least one of SiCO, SiCNO, SiCN and SiBCN with LiaMbPO4 is obtained by adding LiaMbPO4 into at least one organosilicon polymer of polysiloxane, polysilazane, and polyborosilazane, and then curing, crosslinking, and pyrolysing. Compared with LiaMbPO4, the composite material has a notable improvement in electrochemistry performance and tap density.Type: ApplicationFiled: December 20, 2011Publication date: November 27, 2014Applicant: GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALSInventors: Shigang Lu, Surong Kan, Xiangjun Zhang, Weihua Jin
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Publication number: 20140100398Abstract: Methods and processes for producing paraxylene from catalytic cracking hydrocarbons, particularly C4 and C5+ streams, are disclosed. Each of the processing steps may be tailored to the overall objective of high paraxylene yield from a relative inexpensive feedstock.Type: ApplicationFiled: March 14, 2013Publication date: April 10, 2014Applicant: GTC Technology US LLCInventors: Weihua Jin, Zhongyi Ding, Mircea Cretoiu, Joseph C. Gentry, Mark Lockhart, Calambur Shyamkumar, Pinti Wang
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Patent number: 8658820Abstract: Various embodiments of the invention herein described generally relate to novel processes for the production of aromatic acids by fixed bed catalytic oxidation of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. In an embodiment, a novel oxidation process of the present invention comprises the steps of: a) catalytically oxidizing, with an oxidation catalyst, a liquid phase aromatic acid precursor in the presence of a gaseous oxygen source; b) separating a finished product; c) purging the solvent and the oxidation catalyst; d) optionally recycling at least a portion of the solvent into the oxidation reactor; e) recovering at least a portion of the oxidation catalyst; f) recharging the at least a portion of the oxidation catalyst over a solid recharging catalyst bed; and (g) feeding a reactivated oxidation catalyst to the oxidation reactor.Type: GrantFiled: May 26, 2009Date of Patent: February 25, 2014Assignee: GTC Technology US, LLCInventors: George A. Ball, Joseph C. Gentry, Joseph P. Weller, Zhongyi Ding, John R. H. Wilson, Meritxell Guino, Weihua Jin
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Publication number: 20130267746Abstract: The inventive process is directed to the production of xylenes through integration of aromatics methylation and transalkylation. This integrated process maximizes the production of xylenes and eliminates or minimizes the production of benzene.Type: ApplicationFiled: March 14, 2013Publication date: October 10, 2013Applicant: GTC Technology US LLCInventors: Zhongyi Ding, Weihua Jin, Joseph C. Gentry, Mircea Cretoiu
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Patent number: 8394999Abstract: A process to convert glycerin into propylene glycol and purifying the produced propylene glycol is described. The glycerin-based propylene glycol production requires only one process step compared to petroleum/natural gas-based propylene glycol production requires multiple process steps, and thus represents a cost savings.Type: GrantFiled: March 12, 2012Date of Patent: March 12, 2013Assignee: GTC Technology US LLCInventors: Zhongyi Ding, Joseph Chiu, Weihua Jin
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Patent number: 8362313Abstract: In various embodiments, the present disclosure describes processes and systems for recovery of styrene from a styrene-rich feedstock. The processes and systems maintain performance of an extractive solvent used in the styrene recovery. In general, the processes include introducing a styrene-rich feedstock to an extractive distillation column, removing a styrene-rich stream from the extractive distillation column, introducing the styrene-rich stream to a solvent recovery column, removing a styrene-lean stream from the solvent recovery column, separating and treating a portion of the styrene-lean stream to form a treated extractive solvent and recycling the treated extractive solvent. In some embodiments, the treating process also includes steam stripping. Styrene-recovery systems including an extractive distillation column, a solvent recovery column, a solvent treatment apparatus having at least one equilibrium stage and a continuous circulation loop connecting these components are also disclosed herein.Type: GrantFiled: February 1, 2010Date of Patent: January 29, 2013Assignee: GTC Technology, LPInventors: Zhong Yi Ding, Weihua Jin, Andrei Cimpeanu, Amy Sealey
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Publication number: 20120234516Abstract: Methods for recovering energy from a mother liquor stream in paraxylene crystallization processes are disclosed herein. The low temperature energy from the mother liquor is optimally utilized to reduce the refrigeration burden on the crystallization process.Type: ApplicationFiled: March 19, 2012Publication date: September 20, 2012Applicant: GTC Technology US LLCInventors: Weihua Jin, Zhongyi Ding
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Publication number: 20120232312Abstract: A process to convert glycerin into propylene glycol and purifying the produced propylene glycol is described. The glycerin-based propylene glycol production requires only one process step compared to petroleum/natural gas-based propylene glycol production requires multiple process steps, and thus represents a cost savings.Type: ApplicationFiled: March 12, 2012Publication date: September 13, 2012Applicant: GTC Technology US LLCInventors: Zhongyi Ding, Joseph Chiu, Weihua Jin
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Publication number: 20110108763Abstract: Various embodiments of the invention herein described generally relate to novel processes for the production of aromatic acids by fixed bed catalytic oxidation of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. In an embodiment, a novel oxidation process of the present invention comprises the steps of: a) catalytically oxidizing, with an oxidation catalyst, a liquid phase aromatic acid precursor in the presence of a gaseous oxygen source; b) separating a finished product; c) purging the solvent and the oxidation catalyst; d) optionally recycling at least a portion of the solvent into the oxidation reactor; e) recovering at least a portion of the oxidation catalyst; f) recharging the at least a portion of the oxidation catalyst over a solid recharging catalyst bed; and (g) feeding a reactivated oxidation catalyst to the oxidation reactor.Type: ApplicationFiled: May 26, 2009Publication date: May 12, 2011Inventors: George A. Ball, Joseph C. Gentry, Joseph P. Weller, Zhongyi Ding, John R.H. Wilson, Meritxell Guino, Weihua Jin
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Publication number: 20110057147Abstract: Various embodiments of the present invention generally disclose systems and processes for the conversion of a feed stream comprising at least one C8 aromatic into a product stream comprising isophthalic acid and purified terephthalic acid (IPA/TA).Type: ApplicationFiled: March 18, 2009Publication date: March 10, 2011Inventors: George A. Ball, Joseph G. Gentry, Joseph P. Weller, Zhongyi Ding, Weihua Jin
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Publication number: 20110015460Abstract: In various embodiments, the present disclosure describes processes and systems for recovery of styrene from a styrene-rich feedstock. The processes and systems maintain performance of an extractive solvent used in the styrene recovery. In general, the processes include introducing a styrene-rich feedstock to an extractive distillation column, removing a styrene-rich stream from the extractive distillation column, introducing the styrene-rich stream to a solvent recovery column, removing a styrene-lean stream from the solvent recovery column, separating and treating a portion of the styrene-lean stream to form a treated extractive solvent and recycling the treated extractive solvent. In some embodiments, the treating process also includes steam stripping. Styrene-recovery systems including an extractive distillation column, a solvent recovery column, a solvent treatment apparatus having at least one equilibrium stage and a continuous circulation loop connecting these components are also disclosed herein.Type: ApplicationFiled: February 1, 2010Publication date: January 20, 2011Inventors: Zhongyi Ding, Weihua Jin, Andrei Cimpeanu, Amy Sealey