Patents by Inventor Kai Wang Kelvin TO

Kai Wang Kelvin TO 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).

  • Publication number: 20230349006
    Abstract: Provided a nucleic acid probe or primer for the detection of SARS-CoV-2 RdRp/Helicase, Spike (S) or Nucleocapsid (N), and its use in a method of detecting SARS-CoV-2 in a sample. The nucleic acid probe or primer is consisting of a nucleic acid sequence of any of SEQ ID NOs: 1-12.
    Type: Application
    Filed: January 20, 2021
    Publication date: November 2, 2023
    Inventors: Fuk Woo Jasper Chan, Kai Wang Kelvin To, Kwok Yung Yuen
  • 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
  • Publication number: 20210238629
    Abstract: Disclosed are delivery and expression systems of multiple antiviral therapeutic molecules. The therapeutic molecules include a novel class of dual-functional peptide and defective interfering genes of a virus. Also disclosed are compositions comprising the therapeutic molecules that are useful for the treatment and prevention of viral infections. Also disclosed herein are the method of making and using a vector that expresses the therapeutic molecules. Therapeutic molecules include cellular components such as RNA, DNA, peptide, proteins or combination thereof.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 5, 2021
    Inventors: Hanjun Zhao, Kai Wang Kelvin To, Kwok Yung Yuen
  • Publication number: 20200215185
    Abstract: Miltefosine is utilized to enhance immune response to vaccination, for example an influenza and/or coronavirus vaccination. The inventive subject matter also provides compositions and methods for enhancing viral yield in cultured cells, by application of a cannabinoid receptor agonist (such as methanandamide) to such cells. Such enhanced viral yield can be used to enhance virus production for purposes of vaccine formulation and/or to improve sensitivity of cell-based virus assays.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 9, 2020
    Inventors: Kwok Yung YUEN, Kai Wang Kelvin TO, Shuofeng YUAN, Fuk Woo Jasper CHAN, Jinxia ZHANG, Fan Ngai HUNG, Johnson Yiu-Nam LAU
  • Publication number: 20200163957
    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: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Fan Ngai HUNG, Jinxia ZHANG, Kai Wang Kelvin TO, Johnson Yiu-Nam LAU, Kwok Yung YUEN
  • Patent number: 10588903
    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: July 15, 2016
    Date of Patent: March 17, 2020
    Assignees: EMV ENHANCE (HK) LIMITED, VERSITECH LIMITED
    Inventors: Fan Ngai Hung, Jinxia Zhang, Kai Wang Kelvin To, Johnson Yiu-Nam Lau, Kwok Yung Yuen
  • Publication number: 20190323094
    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: Application
    Filed: June 30, 2017
    Publication date: October 24, 2019
    Inventors: Kai Wang Kelvin TO, Jie ZHOU, Johnson Yiu-Nam LAU, Kwok-Yung YUEN
  • Publication number: 20190054060
    Abstract: Therapy for influenza using a combination of a neuraminidase inhibitor, a macrolide antibiotic, and a non-steroidal anti-inflammatory drug has been found to provide improved clinical outcomes and reduced incidence of viral quasispecies compared to conventional treatment with neuraminidase inhibitors alone. Effective treatment schedules are also provided. The drug combination can be used in concert with a proton-pump inhibitor and/or an additional antibacterial antibiotic.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 21, 2019
    Inventors: Ivan Fan Ngai HUNG, Kai Wang Kelvin TO, Jinxia Anna ZHANG, Fuk Woo Jasper CHAN, Manson FOK, Johnson Yiu-Nam LAU, Kwok-Yung YUEN
  • Publication number: 20180207149
    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: Application
    Filed: July 15, 2016
    Publication date: July 26, 2018
    Inventors: Fan Ngai HUNG, Jinxia ZHANG, Kai Wang Kelvin TO, Johnson Yiu-Nam LAU
  • Publication number: 20180127836
    Abstract: Highly conserved, short untranslated leader sequences have been identified in MERS-CoV and other human pathogenic Coronaviruses that provide the basis for highly sensitive and accurate assays for these viruses. Use of locked nucleic acids is shown to be useful in amplification reactions for these short sequences. RT-PCR using locked nucleic acids is shown to provide accurate detection of a variety of human pathogen Coronaviruses present at 10 copies per reaction or less.
    Type: Application
    Filed: May 6, 2016
    Publication date: May 10, 2018
    Inventors: Fuk Woo Jasper CHAN, Man Lung YEUNG, Kai Wang Kelvin TO, Kwok Yung YUEN, Johnson Yiu-Nam LAU, Manson FOK