Patents Assigned to Polytechnic University
  • Photocatalyst
    Patent number: 10434505
    Abstract: A photocatalyst includes a composite fiber having at least two crystalline semi-conductors that provide a heterojunction structure in the composite fiber.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: October 8, 2019
    Assignee: The Hong Kong Polytechnic University
    Inventors: Wallace Woon Fong Leung, Chun Pei
  • PASSIVE VIBRATION REDUCING APPARATUS
    Publication number: 20190283228
    Abstract: In an aspect of the disclosure there is provided a vibration reducing apparatus for a percussive tool having an axis of reciprocation. The apparatus comprises, a guide frame and at least one member extending across the axis of reciprocation. An assembly extending in a direction of along the axis of reciprocation comprises at least two layers and each layer comprises four interconnected elongate members pivotally attached and rotatable with respect to each other to define a polygon; and the assembly has at least one biasing means. A handle is movably coupled to the guide frame and supported on the assembly. The apparatus provides decreasing stiffness with increasing compression of the assembly under an applied load to the handle for reducing vibration in a predetermined frequency range.
    Type: Application
    Filed: January 31, 2018
    Publication date: September 19, 2019
    Applicant: The Hong Kong Polytechnic University
    Inventor: Xingjian JING
  • Method for preparing aqueous MnOink and capacitive energy storage devices comprising MnO
    Patent number: 10395851
    Abstract: In one aspect, the present disclosure relates to an improved method of preparing concentrated MnO2 ink with increased efficiency and cost effectiveness. The method involves mixing KMnO4 solution with highly crystalline carbon particles (HCCPs) with average diameters less than 800 nm at 30-60° C. for at least 8 hours. The present disclosure further relates to a symmetric supercapacitor device comprising MnO2 coated electrodes and a solid state ionic liquid as electrolyte, as well as an interdigital transparent SC (IT-SC) device comprising aqueous MnO2 ink.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 27, 2019
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jiasheng Qian, Jikang Yuan, Shu Ping Lau
  • Reversible wavelength channels for optical communication networks
    Patent number: 10382158
    Abstract: An optical transmission system comprises at least one first connection point and one second connection point arranged to transmit and receive at least one channel signal transmitted via at least one optical means connecting the first connection point and the second connection, wherein each of the at least one channel signal is reversibly configurable to be transmitted in either a first direction or a second direction between the first connection point and the second connection point. A method of transmitting at least one channel signal between a first connection point and a second connection point via at least one optical media in an optical transmission system, wherein each of the at least one channel signal is reversibly configurable to be transmitted in either a first direction or a second direction between the first and the second connection points.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 13, 2019
    Assignees: The Hong Kong Polytechnic University, Versitech Limited
    Inventors: Chun-yin Li, Ping-Kong Alexander Wai, Victor On-Kwok Li
  • Gravity-based light pressure calibrating device and corresponding method
    Patent number: 10378990
    Abstract: A gravity-based light pressure calibrating device includes a vacuum chamber, a calibration platform, and laser emitters and laser beam expanders, laser beam expanders changing a point light source to an area light source.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 13, 2019
    Assignee: Northwestern Polytechnical University
    Inventors: Aiming Shi, Li Jiang
  • Photoluminescent nanoparticles and their synthesis and uses
    Patent number: 10316246
    Abstract: The present invention discloses a method of preparing polymeric photoluminescent dots in water using inexpensive non-conjugated polymers. The resulting polymeric photoluminescent dots display the following properties: excellent water dispersibility, low toxicity, high absorptivity, good photo-stability and high quantum yield. The photoluminescent properties are not influenced by aggregation-caused quenching effect. The method is amenable to scale-up and is environmentally friendly.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 11, 2019
    Assignee: The Hong Kong Polytechnic University
    Inventors: Pei Li, Yuan Yao, Dechao Niu
  • Photocatalyst
    Patent number: 10315191
    Abstract: A photocatalyst includes a composite fiber having at least two crystalline semi-conductors that provide a heterojunction structure in the composite fiber.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 11, 2019
    Assignee: Hong Kong Polytechnic University
    Inventors: Wallace Woon Fong Leung, Chun Pei
  • APPARATUS AND METHOD FOR IMPARTING FALSE TWIST TO A YARN
    Publication number: 20190127893
    Abstract: An apparatus for imparting false twist to a staple yarn comprising a yarn guide for guiding a staple yarn along a path and a false twist device comprising a convex surface for engagement with a staple yarn so as to impart a force to the staple yarn when the staple yarn engages with and traverses the convex surface of the false twist device, and wherein the relative positioning between the yarn guide and the convex surface of the false twist device is adjustable such that, when a staple yarn is engaged with the convex surface of the false twist device and extends between the yarn guide and the false twist device, the amount of contact between the staple yarn and the convex surface of the false twist device can be controlled.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 2, 2019
    Applicant: The Hong Kong Polytechnic University
    Inventors: Xiaoming TAO, Rong YIN
  • Heterogeneous microarray based hybrid upconversion nanoprobe/nanoporous membrane system
    Patent number: 10266403
    Abstract: The invention relates to a microarray design of hybrid upconversion nanoparticles on a nanoporous anodized alumina membrane heterogeneous assay for simultaneous detection of multiple oligonucleotides, for example, oligonucleotides from different types of viruses.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: April 23, 2019
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jianhua Hao, Mo Yang, Ming-Kiu Tsang, Weiwei Ye
  • FREQUENCY-INVARIANT BEAMFORMER FOR COMPACT MULTI-RINGED CIRCULAR DIFFERENTIAL MICROPHONE ARRAYS
    Publication number: 20190069086
    Abstract: A multi-ringed differential microphone array includes a first number of microphones situated along a first substantial circle having a first radius, a second number of microphones situated along a second substantial circle having a second radius, and a processing device, communicatively coupled to the first number microphones and the second number of microphones, to receive a plurality of electronic signals generated by the first number of microphones and the second number of microphones, determine a differential order (N) based on the second number, and execute an N-th order minimum-norm beamformer to calculate an estimate of the sound source based on the plurality of electronic signals.
    Type: Application
    Filed: August 30, 2018
    Publication date: February 28, 2019
    Applicant: Northwestern Polytechnical University
    Inventors: Jingdong Chen, Gongping Huang
  • Alkyne-, azide- and triazole-containing flavonoids as modulators for multidrug resistance in cancers
    Patent number: 10208025
    Abstract: A triazole bridged flavonoid dimer compound library was efficiently constructed via the cycloaddition reaction of a series of flavonoid-containing azides (Az 1-15) and alkynes (Ac 1-17). These triazole bridged flavonoid dimers and their precursor alkyne- and azide-containing flavonoids were screened for their ability to modulate multidrug resistance (MDR) in P-gp-overexpressed cell line (LCC6MDR), MRP1-overexpressed cell line (2008/MRP1) and BCRP-overexpressed cell line (HEK293/R2 and MCF7-MX100). Generally, they displayed very promising MDR reversal activity against P-gp-, MRP1- and BCRP-mediated drug resistance. Moreover, they showed different levels of selectivity for various transporters. Overall, they can be divided into mono-selective, dual-selective and multi-selective modulators for the P-gp, MRP1 and BCRP transporters.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 19, 2019
    Assignees: The Hong Kong Polytechnic University, The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Larry Ming Cheung Chow, Tak Hang Chan, Kin Fai Chan, Iris Lai King Wong, Man Chun Law
  • Network attack detection method
    Patent number: 10193910
    Abstract: It is described a network attack detection method. A topology analysis on network is conducted to obtain a probing path set containing at least one probing path. A first probing path contained in the probing path set is probed by using a probing pattern to obtain a performance metric of the first probing path. It is determined whether the first probing path is subjected to network attack according to the performance metric and a control performance metric.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 29, 2019
    Assignees: The Hong Kong Polytechnic University, Tencent Technology (Shenzhen) Company Limited
    Inventors: Lei Xue, Zhiwei Liu, Xianneng Zou, Jingang Hou, Xiapu Luo, Edmond W. W. Chan, Pei Tu, Yuru Shao
  • EDIBLE OIL ANALYSIS SYSTEM AND METHOD
    Publication number: 20180364210
    Abstract: The present disclosure provides a method and system for analysing one or more edible oil samples. In an embodiment the disclosure provides for calibrating the matrix-assisted laser desorption/ionisation mass spectrometry (MALDI-MS) data obtained for one or more edible oil samples to obtain calibrated spectral data; and comparing the calibrated spectral data derived from the one or more samples against a library of calibrated MALDI-MS spectra for a plurality of edible oil samples to determine the most likely composition of the one or more edible oil samples.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 20, 2018
    Applicant: The Hong Kong Polytechnic University
    Inventors: Zhongping YAO, Cheuk Chi Albert NG, Tsz-tsun NG, Suying LI
  • CESIUM TUNGSTEN BRONZE-BASED SELF-CLEANING NANO HEAT-INSULATION COATING MATERIAL AND PREPARATION METHOD THEREOF
    Publication number: 20180340082
    Abstract: The present disclosure provides a cesium tungsten bronze-based self-cleaning nano heat-insulation coating material, and method of preparing the same. Cesium tungsten bronze nanoparticles are prepared by hydrothermal method using WCl6 and CsOH.5H2O as raw materials, PVP as a surfactant and acetic acid as an acid catalyst. TiO2 nanoparticles are prepared from TiCl4. Subsequently ball milling and dispersing of the cesium tungsten bronze nanoparticles, the TiO2 nanoparticles, and a silane coupling agent with water to obtain an aqueous slurry containing cesium tungsten bronze/TiO2 composite particles is performed. The concentration of the aqueous slurry containing cesium tungsten bronze/TiO2 composite particles is adjusted to obtain a self-cleaning nano heat-insulation coating material.
    Type: Application
    Filed: March 1, 2018
    Publication date: November 29, 2018
    Applicant: The Hong Kong Polytechnic University
    Inventors: Lin LU, Yuanhao WANG, Hong ZHONG, Yan HU
  • LED automotive tail lamp set
    Patent number: 10132463
    Abstract: The present invention relates to LED lamps suitable for forming automotive lighting systems, made of high power lambertian LEDs and a TIR collimator lens. In the present invention, a novel TIR collimator lens is developed to collect the light emitted from the LED source and through a pillow lens array; redistribution occurs to form a light pattern meeting ECE requirements.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: November 20, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Fai Cheung, Sandy To, Wing Bun Lee, Jin Bo Jiang, Bo Wang
  • Synthesis and use of amine-containing flavonoids as potent anti-leishmanial agents
    Patent number: 10111854
    Abstract: The present invention relates to novel series of amine-containing flavonoids and compositions containing the compounds, as well as the synthesis and the use of the same. The invention also relates to methods of treatment and prevention of diseases, in particular, parasitic infections including Leishmaniasis, comprising administration of the compounds.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: October 30, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Larry Ming-Cheung Chow, Tak Hang William Chan, Kin-Fai Chan, Iris Lai King Wong, Wing-Yiu Kan
  • Low-dimensional structures of organic and/or inorganic substances and use thereof
    Patent number: 10105318
    Abstract: The object of the present invention is low-dimensional, primarily 2D folded structures of organic and/or inorganic substances and/or their agglomerates, which have folds and faces of irregular shape and exhibit high local electric field strength generated by surface charges on the said folds, faces and edges, and use thereof: as sorbents of organic particles (molecules, bacteria, viruses, proteins, antigens, endotoxins) and inorganic particles (metal ions, colloids); as an agent with wound healing and antibacterial activity; as an agent for tumor cell growth inhibition.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: October 23, 2018
    Assignees: Institute of Strength Physics and Materials Science of Siberian Branch Russian Academy of Sciences (ISPMS SB RAS), Jozef Stefan Institute, National Research Tomsk Polytechnic University (TPU)
    Inventors: Sergey G. Psakhie, Marat I. Lerner, Elena A. Glazkova, Olga V. Bakina, Olga Vasiljeva, Georgy A. Mikhaylov, Boris Turk
  • Polymeric waveguide with single dopant
    Patent number: 10093787
    Abstract: The present invention relates to the use of dopants for polymer optical fibers or polymer waveguides containing the dopants, sensors in the polymer optical fibers or polymer waveguides, which may be used in the biomedical industry for the measurement of different physiological and physical variables.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: October 9, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Hwa-Yaw Tam, Julien Bonefacino, Xin Cheng
  • Phosphines, synthesis thereof and their use in catalysis
    Patent number: 10093692
    Abstract: The present invention relates to a novel class of benzimidazolyl/imidazolyl phosphine ligands, methods of preparing such ligands via a simple one-pot protocol, and applications of the ligands in catalytic reactions.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 9, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Fuk Yee Kwong, Shun Man Wong, Chung Chiu Yeung
  • Lens for optical treatment
    Patent number: RE47006
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 28, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Ho To, Siu Yin Lam, Yan Yin Tse