Patents Assigned to Versitech Limited
  • Patent number: 11446280
    Abstract: Provided herein are compounds, derivatives thereof, and compositions including one or more of the compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (I): The present methods include administering to a subject an effective amount of one or more compounds of Formula (I). In one embodiment, the microbial infections are bacterial infections. More specifically, the bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: September 20, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Patent number: 11441198
    Abstract: Compositions and methods are described that provide prognostic determination of the severity of influenza infection based on the PDE3A status of an individual. Impaired PDE3A function is associated with severe symptoms on contracting influenza. Specific SNP mutations are identified that are associated with impaired PDE3A function, and primers and kits are provided that permit identification of these SNPs. Such information can also be combined with other patient data.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 13, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Kai Wang Kelvin To, Jie Zhou, Johnson Yiu-Nam Lau, Kwok-Yung Yuen
  • Patent number: 11357773
    Abstract: Compositions and methods are described in which the topical application of a toll-like receptor 7 agonist or a toll-like receptor 9 agonist at or near a subdermal vaccination site provides an enhanced response to the vaccination. The enhanced response can be an elevated antibody titer relative to an untreated but vaccinated subject, and/or development of cross-species immunity to species not present in the vaccinating composition.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: June 14, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Fan Ngai Hung, Jinxia Zhang, Kai Wang Kelvin To, Johnson Yiu-Nam Lau, Kwok Yung Yuen
  • Patent number: 11260080
    Abstract: Methods for preparing capsules, such as micro- and/or nanocapsules from all-aqueous emulsions are described herein. The method includes mixing, combining, or contacting a first electrically charged phase containing a first solute with at least an optionally charged second phase containing a second solute. The solutes are incompatible with each other. The electrostatic forces between the two solutions induce the formation of droplets of a dispersed phase in a continuous phase. The droplets are then solidified to form the capsules.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 1, 2022
    Assignee: Versitech Limited
    Inventors: Ho Cheung Shum, Yang Song
  • Patent number: 11241660
    Abstract: A hand-carry gravity-driven water filter with high throughput and water disinfection performance is formed. Membranes used for this water filter can be fabricated using electrospun method and non-solvent induced phase inversion method. A novel composite membrane structure (interwoven composite structure) was designed for further enhances water permeability and mechanical strength. The composite membrane can be composed of nanofibers with different diameter from the same polymer or different polymers. Membrane porosity and surface pore size can be controlled. Silver nanoparticles can be in-situ loaded on the surface of the membranes. The developed filter is effective for removal of a wide range of contaminants (e.g., pathogens, suspended solids and heavy metals). The purification process can be carried out under the drive of gravity (with an option for mechanically-enhanced filtration) without electricity.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 8, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Jianqiang Wang, Xiaonan Shi, Zhe Yang, Chuyang Tang
  • Publication number: 20220032260
    Abstract: The present invention relates to a method for controlling an ultrafast chemical reaction using a microfluidic reactor, and more specifically, the present invention relates to a method for controlling an ultrafast chemical reaction such as the Fries rearrangement reaction and the like by using a microfluidic reactor by the 3D metal printing technique.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 3, 2022
    Applicants: Postech Academy-Industry Foundation, Versitech Limited
    Inventors: Dong Pyo KIM, Ji Tae KIM, Hyune Jea LEE
  • Patent number: 11236144
    Abstract: The present invention pertains to antibodies against a novel isoform of human PD1 protein (?42PD1) that contains a 42-nucleotide in-frame deletion in exon 2. The invention also pertains to methods of using the antibodies against ?42PD1 for the treatment for autoimmune disorders. In certain embodiments, the antibodies against ?42PD1 are monoclonal.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: February 1, 2022
    Assignee: VERSITECH LIMITED
    Inventors: Zhiwei Chen, Lin Cheng, Allen Ka Loon Cheung, Jingying Zhou
  • Publication number: 20210381979
    Abstract: Systems and method for versatile multiplexed spinning/rotating bioassays are provided. This bioassay platform can take the advantage of the high-speed spinning motion, which naturally provides on-the-fly cellular imaging at the rate that cannot be reached by the conventional cameras or laser-scanning techniques, but ultrafast imaging modalities. More importantly, the functionalized solid substrates derived from the disk substrate can be compatible with adherent cell culture as well as biochemically-specific cell-capture, which can now be assayed with ultrafast imaging modalities at an ultra-high-speed line-scan rate of >10 MHz. Large-format spinning high-throughput imaging assay could thus be a potent tool for scaling both the assay throughput as well as content/multiplexity as demanded in many applications, e.g. drug discovery, and rare cancer cell screening.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 9, 2021
    Applicant: VERSITECH LIMITED
    Inventors: Kin Man, Kevin TSIA, Hin Long TANG, Kam Seng LAU
  • Patent number: 11154272
    Abstract: Apparatus and methods of use are provided for complex flow imaging and analysis that is non-invasive, accurate, and time-resolved. It is particularly useful in imaging of vascular flow with spatiotemporal fluctuations. This apparatus is an ultrasound-based framework called vector projectile imaging (VPI) that can dynamically render complex flow patterns over an imaging view at millisecond time resolution. The VPI apparatus and methods comprise: (i) high-frame-rate broad-view data acquisition (based on steered plane wave firings); (ii) flow vector estimation derived from multi-angle Doppler analysis (coupled with data regularization and least-squares fitting); and (iii) dynamic visualization of color-encoded vector projectiles (with flow speckles displayed as adjunct).
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: October 26, 2021
    Assignee: VERSITECH LIMITED
    Inventors: Alfred Cheuk Hang Yu, Yat Shun Yiu
  • Patent number: 11154824
    Abstract: A method and apparatus for generating droplets with a high level of uniformity in liquid systems that present a low interfacial tension. This method and apparatus utilize the breakup of the dispersed phase in a controlled fashion by periodically varying the pressure that drives the fluids so as to successfully generate emulsions with a good control over the size. The method and apparatus can be used for the formation of simple emulsion or double emulsion where a larger droplet contains one or more smaller droplets.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 26, 2021
    Assignee: VERSITECH LIMITED
    Inventors: Ho Cheung Shum, Alban Sauret, Zida Li, Yang Song
  • Publication number: 20210273140
    Abstract: A nanostructure fabricated on a semiconductor light-emitting device induces strain in the active region. The active device includes at least one quantum heterostructure, in which the strain changes the extent of Quantum Confined Stark Effect, and thus modifies the wavelength of light emission. By mixing strain relaxation and strain induction effects there is a spectral broadening of the light emission, providing polychromatic light emission.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Applicant: VERSITECH LIMITED
    Inventors: Hoi Wai CHOI, Wai Yuen FU
  • Publication number: 20210259842
    Abstract: An implant device (A1) for engagement with a bone of a patient, the implant device (A1) comprising a distal end (B1), a proximal end (C1), a central shaft (D1) extending therebetween and a longitudinal central axis (E1); the implant device (A1) further including a helical thread portion (F1) extending circumferentially about the central shaft (D1) and extending from the distal end (B1) towards the proximal end (C1) thereof, and a root (G1) at the base of the helical thread portion (F1) adjacent the central shaft (D1), the helical thread portion (F1) including a leading edge (H1) and a trailing edge (I1) both extending at least radially outwardly from the central shaft (D1) and defining the thread portion (F1) therebetween, with the root (G1) of the thread portion (F1) defined therebetween in a direction of the longitudinal central axis (E1) of the implant device (A1); wherein the leading edge (H1) faces in a direction of at least towards the distal end (B1) of the implant device (A1), and the trailing edge (I
    Type: Application
    Filed: June 13, 2019
    Publication date: August 26, 2021
    Applicant: VERSITECH LIMITED
    Inventors: Xiaoreng FENG, Ka-Li Frankie LEUNG, Christian Xinshuo FANG
  • Patent number: 11094855
    Abstract: A nanostructure fabricated on a semiconductor light-emitting device induces strain in the active region. The active device includes at least one quantum heterostructure, in which the strain changes the extent of Quantum Confined Stark Effect, and thus modifies the wavelength of light emission. By mixing strain relaxation and strain induction effects there is a spectral broadening of the light emission, providing polychromatic light emission.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: August 17, 2021
    Assignee: Versitech Limited
    Inventors: Hoi Wai Choi, Wai Yuen Fu
  • Patent number: 11067507
    Abstract: A plasmonic sensor with gradient nanostructures and a method of use thereof is provided. The gradient of shapes will induce different spectral responses at different region of the sensor and show different colors. When there is a change in the environment properties of a substance, such as refractive index, gas concentration or ion density changes, the sensor displays different images, e.g., redial intensity displays and radial color displays. An image recognition based method can be used to extract the environment property with high accuracy according to the sensor image.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 20, 2021
    Assignee: VERSITECH LIMITED
    Inventors: Wendi Li, Zhouyang Zhu, Shijie Li
  • Patent number: 11052078
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: July 6, 2021
    Assignee: Versitech Limited
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Patent number: 11040949
    Abstract: Provided herein are compounds, derivatives thereof, composition comprising one or more of said compounds and derivatives, and methods for prevention and/or treatment of microbial infections and/or related diseases or conditions. The present compounds and/or derivatives thereof can be represented by Formula (II): The present methods include administering to a subject an effective amount of one or more compounds of Formula (II). In one embodiment, said microbial infections are bacterial infections. More specifically, said bacterial infections are staphylococcal infections.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: June 22, 2021
    Assignee: Versitech Limited
    Inventors: Yi Tsun Richard Kao, Peng Gao, Xuechen Li, Ming Liu
  • Patent number: 11032494
    Abstract: This invention describes a technique to enhance pixel resolution of high-speed laser scanning imaging by the means of sub-pixel sampling, applicable to one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) imaging.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 8, 2021
    Assignee: Versitech Limited
    Inventors: Kin Man Kevin Tsia, Chi Shing Antony Chan
  • Patent number: 10998510
    Abstract: Described herein are novel platinum(II) emitters. These materials show high emission quantum efficiency, a low self-quenching constant and are stable in thermal deposition process. Organic light-emitting diodes (OLEDs) fabricated from these materials can have pure green emission, high efficiency and low efficiency roll-off.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 4, 2021
    Assignee: VERSITECH LIMITED
    Inventors: Chi Ming Che, Chi Fai Kui, Chi Chung Kwok
  • Patent number: 10973748
    Abstract: The composition includes a cyclic, unsaturated compound, preferably a polyphenol derivative. It reduces the synthesis of melanin by inhibiting the activity and expression levels of tyrosinase and related proteins, thereby preventing and limiting the content and distribution of melanin in mammalian skin. It also induces autophagy of melanosome, thereby restricting the synthesis, storage and transfer of melanin from melanocyte to keratinocyte. The dual modes of action allow for the efficacy of the composition at low dosage without causing toxicity to lighten skin and treat disorders associated with hyperpigmentation.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: April 13, 2021
    Assignee: VERSITECH LIMITED
    Inventors: Mingfu Wang, Shu Ting Hu, Yi Zhen Wu
  • Patent number: 10937975
    Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 2, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., VERSITECH LIMITED
    Inventors: Yoonhyun Kwak, Chi Ming Che, Whail Choi, Tsz Lung Lam, So Ming Tong