Patents Assigned to The Hong Kong University of Science and Technology
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Patent number: 11961302Abstract: A system for proctoring online exams includes a client-side computing system and a visual analytics system. The client-side computing system includes a camera configured to obtain video data corresponding to a user while taking an exam and one or more input devices configured to obtain interaction data, wherein the interaction data includes mouse movements of the user while taking the exam. The visual analytics system is configured to obtain the video data and the interaction data from the client-side computing system, analyze the exam data to detect abnormal behavior by the user based at least in part on mouse movement data, and generate one or more visualizations of the analyzed exam data to be used in determining whether or not the user has cheated during the exam.Type: GrantFiled: April 20, 2022Date of Patent: April 16, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Haotian Li, Min Xu, Huan Wei, Huamin Qu, Yong Wang
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Patent number: 11945973Abstract: The ionic liquid-based coating is a coating for both porous and nonporous materials. As non-limiting examples, a porous substrate coated with the ionic liquid-based coating may be used to disinfect and remove microorganisms from air and water, to provide an antimicrobial surface for preventing microbial contamination, or to enhance filtration efficiency of the porous material for airborne and waterborne particulate matter without increasing flow resistance. As a further non-limiting example, a nonporous substrate coated with the ionic liquid-based coating may be used to form a surface capable of self-disinfection from microorganisms contacting surface. The ionic liquid-based coating includes at least one ionic liquid, an adhesive, and at least one additive, which may be a disinfectant, a viscosity modifier, a pH buffer, a fragrance, or combinations thereof.Type: GrantFiled: May 14, 2020Date of Patent: April 2, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: King Lun Yeung, Wei Han, Xizi Song, Joseph Kai Cho Kwan, Yutang Luo
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Patent number: 11936107Abstract: The dipole-resonator resistive absorber is a metamaterial absorber operating in the microwave regime. A single unit of the dipole-resonator resistive absorber includes a first rectangular conductive ring having a pair of first resistors mounted thereon and in electrical communication therewith, and a plurality of parallel linear arrays of second rectangular conductive rings, where each of the second rectangular conductive rings has a pair of second resistors mounted thereon and in electrical communication therewith. The first rectangular conductive ring is mounted above the plurality of parallel linear arrays of the second rectangular conductive rings, and this structure is backed by an electrically conductive layer. The single unit dipole-resonator resistive absorber may be expanded into an arrayed structure, forming a polarization-independent dipole-resonator resistive absorber.Type: GrantFiled: August 2, 2021Date of Patent: March 19, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Ping Sheng, Sichao Qu, Yuxiao Hou
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Broadband sound absorber based on inhomogeneous-distributed Helmholtz resonators with extended necks
Patent number: 11929053Abstract: Sound absorbers using distributed absorption units each having an extended neck are provided. The absorption units can be, for example, Helmholtz resonators with extended neck (HRENs). The absorption units can be distributed in a lateral fashion, for example, in a checkerboard fashion with laterally, non-diagonally adjacent units having a different extended neck length and/or diameter. Each absorption unit can be, for example, a cylinder-structure core sandwiched between a back wall and a perforated plate.Type: GrantFiled: September 3, 2020Date of Patent: March 12, 2024Assignee: The Hong Kong University of Science and TechnologyInventors: Jingwen Guo, Xin Zhang, Yi Fang -
Patent number: 11916156Abstract: A system comprising a biomimetic electrochemical eye (EC-EYE) and a computing device is provided. The EC-EYE comprises: an ionic liquid device; a nanowire (NW) device that comprises the plurality of NWs; and a connection device configured to provide a plurality of currents associated with the plurality of NWs to a computing device. The computing device comprises one or more processors and a display device. The one or more processors are configured to: receive the plurality of currents from the plurality of NWs via the connection device; determine a plurality of pixel characteristics associated with a plurality of pixels based on the plurality of currents from the plurality of NWs; generate an image comprising the plurality of pixels based on the plurality of pixel characteristics; and provide the image to a display device. The display device is configured to display the image.Type: GrantFiled: April 8, 2021Date of Patent: February 27, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zhiyong Fan, Leilei Gu
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Patent number: 11905703Abstract: A soft boundary structure is implemented using a resonator structure capable of receiving sound or vibration, establishing resonance coupled with received sound or vibration, and creating a reflection with a pi phase factor. A soft boundary is located on or closely adjacent the resonator structure. The soft boundary cooperates with the resonator structure to attenuate the sound or vibration.Type: GrantFiled: December 23, 2019Date of Patent: February 20, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Ping Sheng, Ho Yiu Mak, Xiaonan Zhang, Zhen Dong
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Patent number: 11880114Abstract: Techniques for using ferroelectric liquid crystals Dammann grating (FLCDG) for light detection and ranging devices are disclosed. In LiDAR devices, accuracy, response time, and cost performance can be limited by some factors, such as laser pulse width, time resolution of a time-to-digital conversion chip, detector bandwidth, shot noise, and time error generated by electronic circuits. A FLCDG-based architecture can improve a LiDAR device, and provide for one-shot capturing due to the high switching speed at very low driving voltage provided by ferroelectric liquid crystals and the equal diffracting ability of Dammann grating.Type: GrantFiled: August 27, 2020Date of Patent: January 23, 2024Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zhengnan Yuan, Abhishek Kumar Srivastava, Zhibo Sun, Hoi Sing Kwok
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Patent number: 11874073Abstract: The present invention provides a radiative cooling structure that can be fabricated using solution-based processes and offer great IR-selectivity referring to low absorptivity within solar spectrum and high emissivity within the atmosphere transmission window (8-13 microns) for daytime radiative cooling. This structure includes a reflective layer, a ceramic IR-selectively emissive layer and a ceramic emission boosting layer, and the ceramic emission boosting layer is able to boost the overall emissivity of the radiative cooling structure within the atmosphere transmission windows and avoid infrared emission outside the atmosphere transmission window. The IR-selectivity contributes to larger temperature reduction, especially in high humidity area.Type: GrantFiled: March 31, 2021Date of Patent: January 16, 2024Assignee: The Hong Kong University of Science and TechnologyInventors: Baoling Huang, Chongjia Lin
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Patent number: 11866424Abstract: Provided herein are aggregation-induced emission luminogens useful as photodynamic therapy and imaging agents, compositions including two or more aggregation-induced emission luminogens, pharmaceutical compositions comprising the same, and methods of use and preparation thereof.Type: GrantFiled: January 21, 2021Date of Patent: January 9, 2024Assignee: The Hong Kong University of Science and TechnologyInventors: Benzhong Tang, Wenhan Xu, Dong Wang
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Patent number: 11871662Abstract: Provided herein are chiral compounds that exhibit circularly polarized photoluminescence and electroluminescence and electroluminescent devices and circularly polarized fluorescent probes comprising the same.Type: GrantFiled: February 14, 2019Date of Patent: January 9, 2024Assignee: The Hong Kong University of Science and TechnologyInventors: Benzhong Tang, Fengyan Song
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Patent number: 11839998Abstract: Three-dimensional (3D) hierarchical morphologies widely exist in natural and biomimetic materials, which impart preferential functions including liquid and mass transport, energy conversion, and signal transmission for various applications. While notable progress has been made in the design and manufacturing of various hierarchical materials, the state-of-the-art approaches suffer from limited materials selection, high costs, as well as low processing throughput. Herein, by harnessing the configurable elastic crack engineering-controlled formation and configuration of cracks in elastic materials, an effect normally avoided in various industrial processes, the present invention provides a facile and powerful technique to enable the faithful transfer of arbitrary hierarchical structures with broad material compatibility and structural and functional integrity.Type: GrantFiled: October 23, 2020Date of Patent: December 12, 2023Assignees: Hong Kong Baptist University, The Hong Kong University of Science and Technology, City University of Hong KongInventors: Kangning Ren, Hongkai Wu, Zuankai Wang, Shuhuai Yao, Beng Ong, Wanbo Li, Zeyu Li, Han Sun, Chiu Wing Chan
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Patent number: 11834620Abstract: Systems and methods related to centrifuge energy harvesting chambers (CEHCs) for gas production simulation are provided. Certain CEHCs may include a high-pressure chamber, high-pressure syringe pumps, cooling systems, an actuator and surcharge, backpressure control inside the wellbore, a heating element on the wellbore, water gas separation systems, and flow measurement systems. Certain CEHCs may also provide software operably connected to sensors and instrumentation, comprising a module to continuously, in real-time, periodically, or asynchronously, measure and monitor simulation variables.Type: GrantFiled: November 16, 2021Date of Patent: December 5, 2023Assignee: The Hong Kong University of Science and TechnologyInventors: Charles Wang Wai Ng, Sina Baghbanrezvan
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Patent number: 11820762Abstract: The subject invention pertains to compositions and methods for treating neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), multiple sclerosis, epilepsy, stroke, alcohol withdrawal, progressive supranuclear palsy (PSP), Pick's disease (PiD), corticobasal degeneration (CBD), frontotemporal dementia or parkinsonism linked to chromosome 17 (FTDP-17). The methods of the subject invention further relate to methods of fermentation of bacterial cells and methods of tautomerization of the subject compounds.Type: GrantFiled: September 15, 2021Date of Patent: November 21, 2023Assignees: The Hong Kong University of Science and Technology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)Inventors: Pei-Yuan Qian, Aifang Cheng, Changdong Liu, Wenkang Ye, Guang Zhu
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Publication number: 20230365441Abstract: A system and method for performing electrochemically-cycled oxidation on landfill leachate are provided for the removal of organic materials in landfill leachate which have an ultraviolet absorbance at 254 nm (UVA254), thus pre-treating the landfill leachate for co-treatment through dilution with municipal sewage. Electrochemical oxidation is performed on the landfill leachate in a first reactor chamber to produce hypochlorite (OCl?), followed by delayed application of ultraviolet radiation to produce hydroxyl radicals (OH•) and reactive chlorine species to break bonds in the organic materials. A portion of this partially-treated landfill leachate is then fed to a second reactor chamber for subsequent dichlorination through ultraviolet photolysis. An equivalent volume of fresh landfill leachate is fed into the first reactor chamber to begin the cycle again, allowing for continuous treatment of a source of landfill leachate.Type: ApplicationFiled: May 9, 2023Publication date: November 16, 2023Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: YUGO SATO, GUANGHAO CHEN, YUEWEI LIU
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Patent number: 11815457Abstract: Compounds including triphenylamine and luminol moieties exhibiting near-infrared chemiluminescence useful as reactive oxygen sensors, pharmaceutical compositions including the same, and methods of preparation and use thereof.Type: GrantFiled: March 1, 2021Date of Patent: November 14, 2023Assignee: The Hong Kong University of Science and TechnologyInventors: Benzhong Tang, Liang Luo, Chenchen Liu
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Patent number: 11787817Abstract: The subject invention pertains to compositions comprising albofungin and/or derivatives thereof, including, chloroalbofungin, 477-albo, 492-albo, 505-albo, 506-1-albo, 506-2-albo, 519-albo, and 562-albo. The subject invention further pertains to methods of treating a subject with HIV using albofungin and/or derivatives thereof, including, chloroalbofungin, 477-albo, 492-albo, 505-albo, 506-1-albo, 506-2-albo, 519-albo, and 562-albo.Type: GrantFiled: June 1, 2022Date of Patent: October 17, 2023Assignees: The Hong Kong University of Science and Technology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)Inventors: Peiyuan Qian, Aifang Cheng, Changdong Liu, Wenkang Ye, Guang Zhu
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Patent number: 11782400Abstract: Various indirect feedback tuning apparatuses and methods for tuning photonic systems are enabled. For instance, a system can perform operations, such as: determining a temperature of an optical device, determining, based on the temperature of the optical device and a feedback model, a tuning input to stabilize an optical signal, and performing, based on the tuning input, feedback tuning, wherein the feedback tuning comprises thermal tuning and electrical tuning.Type: GrantFiled: December 8, 2020Date of Patent: October 10, 2023Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Xuanqi Chen, Jiang Xu, Zhifei Wang, Yuxiang Fu
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Patent number: 11780864Abstract: Non-d0 rhenium(V) alkylidyne catalysts useful for catalyzing alkyne metathesis reactions, such as homo- and cross-metathesis of alkynes or diynes, ring closing metathesis and ring-opening metathesis, methods or use, and preparation thereof. The catalysts are stable to air and moisture and tolerate a variety of functional groups in substrates.Type: GrantFiled: July 5, 2022Date of Patent: October 10, 2023Assignee: The Hong Kong University of Science and TechnologyInventors: Guochen Jia, Mingxu Cui
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Patent number: 11770972Abstract: Provided herein are multifunctional photoresponsive compositions that can undergo conversion from an aggregation-caused quenching (ACQ) state to an aggregation-induced emission (AIE) state and macroscopic actuation and systems comprising the same and methods of use thereof.Type: GrantFiled: July 28, 2020Date of Patent: September 26, 2023Assignee: The Hong Kong University of Science and TechnologyInventors: Benzhong Tang, Haoran Wang, Hao Xing
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Publication number: 20230293564Abstract: A method for treating cancer by using an agent which is capable of inhibiting the functionality of the MCM complex, a heterohexameric ring formed from six subunits, in the process of DNA replication and a method of screening for such agents by detecting the locations and functions of the MCM subunits, such as hMcm2 and hMcm6, in cells treated with candidate compounds.Type: ApplicationFiled: April 17, 2023Publication date: September 21, 2023Applicants: The Hong Kong University Of Science And Technology, Hong Kong Baptist University, Macau University Of Science And TechnologyInventors: Chun LIANG, Zhihong JIANG, Ziyi Wang, Zhiling Yu, Jingrong Wang, Liping Bai