Patents by Inventor Weiwen Zheng
Weiwen Zheng 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: 20250113743Abstract: The present application discloses a Josephson junction preparation method and a Josephson junction, wherein a mask is provided with a first channel and a second channel, one end of the second channel coincides with the first channel, and a three-end channel is formed; a strip-shaped first superconducting layer is formed on the side, away from the evaporation source, in the first channel in the first evaporation direction; an included angle is formed between the first evaporation direction and the surface normal of the substrate, and the first evaporation direction enables the first superconducting layer to be only arranged in the first channel; a second superconducting layer is arranged in the second channel in the second evaporation direction, and forming a Josephson junction in the overlapped area of the first channel and the second channel.Type: ApplicationFiled: December 13, 2024Publication date: April 3, 2025Inventors: Weiwen ZHENG, Tian LUAN, Huide ZHOU, Bo FAN
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Publication number: 20250026506Abstract: An unmanned aerial vehicle (UAV) that includes: a chassis; a plurality of arms that extend outwardly from the chassis; a plurality of propeller assemblies that are supported by the plurality of arms; a canopy that is connected to the chassis so as to provide an outer cover for the UAV that is configured to protect internal components thereof; a frame that is supported by the canopy such that the frame is isolated from the chassis; and a plurality of image capture assemblies that are supported by the frame such that the frame separates the plurality of image capture assemblies from the chassis and the canopy so as to inhibit relative movement between the plurality of image capture assemblies during operation of the UAV.Type: ApplicationFiled: September 4, 2024Publication date: January 23, 2025Inventors: Asher Mendel Robbins-Rothman, Kellen James Waterman O'Rourke, Adam Nathan Lebovitz, Dylan Matthew Callaway, Benjamin Scott Thompson, Andrew Xu, Kevin Christoph Clemens, Harrison Weiwen Zheng, Ryan David Kennedy
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Publication number: 20250026505Abstract: An unmanned aerial vehicle (UAV) that includes: a chassis; a plurality of arms that extend outwardly from the chassis; a plurality of propeller assemblies that are supported by the plurality of arms; a canopy that is connected to the chassis so as to provide an outer cover for the UAV that is configured to protect internal components thereof; a frame that is supported by the canopy such that the frame is isolated from the chassis; and a plurality of image capture assemblies that are supported by the frame such that the frame separates the plurality of image capture assemblies from the chassis and the canopy so as to inhibit relative movement between the plurality of image capture assemblies during operation of the UAV.Type: ApplicationFiled: July 17, 2024Publication date: January 23, 2025Inventors: Asher Mendel Robbins-Rothman, Kellen James Waterman O`Rourke, Adam Nathan Lebovitz, Dylan Matthew Callaway, Benjamin Scott Thompson, Andrew Xu, Kevin Christoph Clemens, Harrison Weiwen Zheng, Ryan David Kennedy
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Publication number: 20230197572Abstract: The present disclosure discloses a through-silicon-via structure and a method for preparing the same, a through-silicon-via interconnection structure and a method for preparing the same, and an electronic device, and belongs to the technical of semiconductors. The method includes forming an initial through hole running through a silicon-based substrate, forming a silicon oxide film on an inner wall of the initial through hole through oxidization, and removing the silicon oxide film to obtain a through-silicon-via structure with a through-silicon-via. The inner wall of the initial through hole will gradually tend to be smooth after being oxidized to form the silicon oxide film with a certain thickness, so that the inner wall of the through-silicon-via of the through-silicon-via structure formed after the silicon oxide film is removed is relatively smooth, which will not affect the quality of the conducting material subsequently grown on the inner wall of the through-silicon-via.Type: ApplicationFiled: February 2, 2023Publication date: June 22, 2023Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Weiwen ZHENG, Kanglin XIONG, Jiagui FENG, Xiaowei LI, Wenlong ZHANG, Kunliang BU, Dengfeng LI
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Patent number: 7462603Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab? fragment attached to a hydrophilic polymer.Type: GrantFiled: April 4, 2005Date of Patent: December 9, 2008Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng
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Publication number: 20060147513Abstract: The present invention provides for liposomes loaded with a therapeutic agent, which liposomes are targeted to a cell of interest by incubation with a targeting protein protein conjugated to a linker molecule comprising a hydrophobic domain, a hydrophilic polymer chain terminally attached to the hydrophobic domain, and a chemical group reactive to one or more functional groups on a protein molecule and attached to the hydrophilic polymer chain at a terminus contralateral to the hydrophobic domain, for a time sufficient to permit the hydrophobic domain to become stably associated with the liposome.Type: ApplicationFiled: February 27, 2006Publication date: July 6, 2006Applicant: Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri Kirpotin
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Patent number: 7022336Abstract: The invention provides methods of attaching proteins to lipidic microparticles with efficiencies of at least 77%. The proteins are attached to linker molecules comprising a hydrophilic domain and a hydrophobic domain. The proteins can be antibodies, antibody fragments, hormones, growth factors, enzymes, or nucleic acid binding proteins, or other proteins. The proteins can be chemically conjugated to the linker molecules, or they can be fused to the linker molecules by recombinant techniques.Type: GrantFiled: May 17, 2004Date of Patent: April 4, 2006Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Patent number: 6943027Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab? fragment attached to a hydrophilic polymer.Type: GrantFiled: April 12, 2002Date of Patent: September 13, 2005Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng
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Publication number: 20050170509Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab? fragment attached to a hydrophilic polymer.Type: ApplicationFiled: April 4, 2005Publication date: August 4, 2005Applicant: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng
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Publication number: 20040209366Abstract: The invention provides methods of attaching proteins to lipidic microparticles with efficiencies of at least 77%. The proteins are attached to linker molecules comprising a hydrophilic domain and a hydrophobic domain. The proteins can be antibodies, antibody fragments, hormones, growth factors, enzymes, or nucleic acid binding proteins, or other proteins. The proteins can be chemically conjugated to the linker molecules, or they can be fused to the linker molecules by recombinant techniques.Type: ApplicationFiled: May 17, 2004Publication date: October 21, 2004Applicant: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Patent number: 6803053Abstract: The invention provides lipidic microparticles stably associated with at least two different targeting moieties, which targeting moieties are attached to linker molecules comprising a hydrophilic domain and a hydrophobic domain. The targeting moieties can be antibodies, antibody fragments, hormones, growth factors, enzymes, or nucleic acid binding proteins, or other proteins. The targeting moieties can be chemically conjugated to the linker molecules, or they can be fused by recombinant techniques.Type: GrantFiled: June 21, 2002Date of Patent: October 12, 2004Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Patent number: 6528087Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: GrantFiled: January 16, 2001Date of Patent: March 4, 2003Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Publication number: 20030003143Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: ApplicationFiled: June 21, 2002Publication date: January 2, 2003Applicant: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Publication number: 20020182249Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: ApplicationFiled: April 12, 2002Publication date: December 5, 2002Applicant: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng
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Patent number: 6410049Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: GrantFiled: October 20, 1999Date of Patent: June 25, 2002Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng
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Publication number: 20020001612Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: ApplicationFiled: January 16, 2001Publication date: January 3, 2002Applicant: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Patent number: 6210707Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab′ fragment attached to a hydrophilic polymer.Type: GrantFiled: May 12, 1998Date of Patent: April 3, 2001Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng, Dmitri B. Kirpotin
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Patent number: 6071533Abstract: The present invention provides for lipid:nucleic acid complexes that have increased shelf life and high transfection activity in vivo following intravenous injection, and methods of preparing such complexes. The methods generally involve contacting a nucleic acid with an organic polycation to produce a condensed nucleic acid, and then combining the condensed nucleic acid with a lipid comprising an amphiphilic cationic lipid to produce the lipid:nucleic acid complex. This complex can be further stabilized by the addition of a hydrophilic polymer attached to hydrophobic side chains. The complex can also be made specific for specific cells, by incorporating a targeting moiety such as an Fab' fragment attached to a hydrophilic polymer.Type: GrantFiled: November 10, 1997Date of Patent: June 6, 2000Assignee: The Regents of the University of CaliforniaInventors: Demetrios Papahadjopoulos, Keelung Hong, Weiwen Zheng