Patents by Inventor Kwok Yung Yuen

Kwok Yung Yuen 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: 20160184421
    Abstract: The subject invention pertains to vaccine formulations and antibodies, and related methods, for the treatment and/or prevention of S. aureus infection. The present invention provides one or more S. aureus antigens for use in vaccine formulations, wherein two or more antigens act synergistically. Further, the present invention provides vaccines that can protect against hematic spread, pneumonia and skin infection.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 30, 2016
    Inventors: Jian-Dong Huang, Kwok-Yung Yuen, Baozhong Zhang
  • Publication number: 20160136261
    Abstract: The subject invention pertains to attenuated influenza viruses, and related vaccines and methods, comprising a genetically modified viral genome. The genetically modified viral genome comprises a disruption in the non-structural (NS1) coding segment and one or more base substitution in the matrix membrane protein coding segment. The genetic modifications result in viruses that lose NS1 functionality, yet remain replication competent.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Honglin Chen, Min Zheng, Kwok-Yung Yuen
  • Patent number: 9212177
    Abstract: Compounds which exhibit antiviral activity, particularly against influenza virus, and methods of making and using thereof are described herein. In one embodiment, the compounds are heterocyclic amides containing piperazine and isozazole rings and optionally substituted with one or more substituents. The compounds can be formulated with one or more pharmaceutically acceptable excipients to form compositions suitable for enteral or parenteral administration. The compounds are preferably used to treat or prevent Influenza A infections, such as H1N1, H2N2, H3N2, H5N1, H7N7, H1N2, H9N2, H7N2, H7N3, and H10N7.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: December 15, 2015
    Assignee: Versitech Limited
    Inventors: Yi Tsun Richard Kao, Dan Yang, Kwok-Yung Yuen
  • Patent number: 9139620
    Abstract: Described herein are isolated paramyxovirus, a morbillivirus (FmoPV), nucleic acid molecules, polypeptides and antibodies related to FmoPV and uses thereof. In certain embodiments, the FmoPV is a feline morbillivirus. Also described herein is a recombinant FmoPV comprising a modified FmoPV gene or gene segments and uses thereof. Also described is a recombinant FmoPV for the prevention and/or treatment of diseases related to FmoPV or a delivery vector. Also described herein is a diagnostic assay for FmoPV, natural or artificial variants, analogs, or derivatives thereof. Also described herein is a vaccine and a kit containing the vaccine for the prevention and treatment of FmoPV infection. Also provided is a diagnostic kit comprising nucleic acid molecules for the detection of FmoPV.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: September 22, 2015
    Assignees: THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION OF THE PEOPLE'S REPUBLIC OF CHINA, VERSITECH LIMITED
    Inventors: Kwok-Yung Yuen, Patrick Chiu-Yat Woo, Susanna Kar-Pui Lau
  • Publication number: 20140155478
    Abstract: Disclosed herein is a novel antifungal compound, derivatives that are used to treat fungal infections. In a specific embodiment, the compound is a small molecule. In a specific embodiment, the compound described herein inhibits yeast to hypha transition under robust hyphal inducing conditions at lower concentration of the molecule. Also disclosed is a composition comprising the antifungal compound. In a specific embodiment, the composition is a pharmaceutical composition. Also disclosed is a method of treating and/or preventing fungal infection using the disclosed compound. The disclosed compound exhibits antifungal activity against wide range of fungal species at slightly higher concentrations. Antifungal compound disclosed herein is used as anti-biofilm agent against fungal infections.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 5, 2014
    Applicant: The University of Hong Kong
    Inventors: Chaminda Jayampath SENEVIRATNE, Yi Tsun Richard KAO, Lakshman Perera SAMARANAYAKE, Kwok Yung YUEN, Dan YANG, Yu WANG, Sze Wah Sarah WONG
  • Publication number: 20130230529
    Abstract: Described herein are isolated paramyxovirus, a morbillivirus (FmoPV), isolated nucleic acids encoding the genome of FmoPV, isolated amino acid sequences of FmoPV proteins, antibodies to FmoPV and its proteins, and uses thereof. In certain embodiments, the modified FmoPV is a feline morbillivirus. Also described herein is a recombinant FmoPV comprising a modified FmoPV gene or gene segments and the use of such a virus. The recombinant FmoPV may be used in the prevention and/or treatment of diseases related to FmoPV or as a delivery vector. Also described herein is a diagnostic assay for the FmoPV. In certain embodiments, the FmoPV causes kidney disease. In certain embodiments, the kidney disease is in felines. In certain embodiments, the kidney disease is tubulointerstitial nephritis (“TIN”). Also described herein is a quantitative assay for the detection of the FmoPV, natural or artificial variants, analogs, or derivatives thereof.
    Type: Application
    Filed: January 22, 2013
    Publication date: September 5, 2013
    Applicant: The University of Hong Kong
    Inventors: Kwok-Yung Yuen, Patrick Chiu-Yat Woo, Susanna Kar-Pui Lau
  • Patent number: 8361708
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: January 29, 2013
    Assignee: Versitech Limited
    Inventors: Joseph S. M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Publication number: 20120149715
    Abstract: High throughput and virtual screening methods are disclosed that can identify potential anti-viral agents. The virtual screening methods identify agents that interact with a viral nucleoprotein binding site. The high throughput methods identify compounds that inhibit viral infection by binding to viral nucleoprotein. Also disclosed are pharmaceutical formulations useful for treating or preventing viral infections, especially influenza A.
    Type: Application
    Filed: May 31, 2011
    Publication date: June 14, 2012
    Inventors: Yi Tsun Richard Kao, Kwok-Yung Yuen, Dan Yang, Lihong Hu, Guanhua Chen, Bo-Jian Zheng
  • Publication number: 20120142701
    Abstract: Cell-based and cell-free assays are disclosed that detect compounds that promote aggregation of proteins, glycoproteins, and protein-nucleic acid complexes. Also disclosed are pharmaceutical formulations useful for treating or preventing viral infections, bacterial infections, cancer, and diseases involving hyper-proliferative cells.
    Type: Application
    Filed: May 31, 2011
    Publication date: June 7, 2012
    Inventors: Yi Tsun Richard Kao, Kwok-Yung Yuen
  • Patent number: 8092994
    Abstract: The present invention provides the complete genomic sequence of a novel human coronavirus, coined as coronavirus-HKU1 (“CoV-HKU1”), isolated in Hong Kong from a patient who had a recent history of visit to Schenzhen, China. The virus belongs to the order Nidovirales of the family Coronavirdae, being a single-stranded RNA virus of positive polarity. The invention also provides the deduced amino acid sequences of the complete genome of the CoV-HKU1. The nucleotide sequences and deduced amino acid sequences of the CoV-HKU1 are useful in preventing, diagnosing and/or treating the infection by CoV-HKU1. Furthermore, the invention provides immunogenic and vaccine preparations using recombinant and chimeric forms as well as subunits of the CoV-HKU1 based on the nucleotide sequences and deduced amino acid sequences of the CoV-HKU1.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: January 10, 2012
    Assignee: Versitech Limited
    Inventors: Kwok Yung Yuen, Chiu Yat Patrick Woo, Kar Pui Susanna Lau, Kwok Hung Chan, Lit Man Poon, Joseph Sriyal Malik Peiris, Yi Guan
  • Publication number: 20110212975
    Abstract: Compounds which exhibit antiviral activity, particularly against influenza virus, and methods of making and using thereof are described herein. In one embodiment, the compounds are heterocyclic amides containing piperazine and isozazole rings and optionally substituted with one or more substituents. The compounds can be formulated with one or more pharmaceutically acceptable excipients to form compositions suitable for enteral or parenteral administration. The compounds are preferably used to treat or prevent Influenza A infections, such as H1N1, H2N2, H3N2, H5N1, H7N7, H1N2, H9N2, H7N2, H7N3, and H10N7.
    Type: Application
    Filed: August 5, 2010
    Publication date: September 1, 2011
    Inventors: Yi Tsun Richard Kao, Dan Yang, Kwok-Yung Yuen
  • Publication number: 20100285457
    Abstract: The present invention relates to a high-throughput diagnostic assay for the virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). In particular, the invention relates to a high-throughput reverse transcription-PCR diagnostic test for SARS associated coronavirus (SARS-CoV). The present assay is a rapid, reliable assay which can be used for diagnosis and monitoring the spread of SARS and is based on the nucleotide sequences of the N (nucleocapsid)-gene of the hSARS virus. The present method eliminates false negative results and provides increased sensitivity for the assay. The invention also discloses the S (spike)-gene of the hSARS virus. The invention further relates to the deduced amino acid sequences of the N-gene and S-gene products of the hSARS virus and to the use of the N-gene and S-gene products in diagnostic methods. The invention further encompasses diagnostic assays and kits comprising antibodies generated against the N-gene or S-gene product.
    Type: Application
    Filed: June 12, 2009
    Publication date: November 11, 2010
    Inventors: Joseph S.M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Patent number: 7785775
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: August 31, 2010
    Assignee: Versitech Limited
    Inventors: Joseph Sriyal Malik Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Publication number: 20100184019
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Application
    Filed: February 10, 2010
    Publication date: July 22, 2010
    Inventors: Joseph S.M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Publication number: 20100080824
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Application
    Filed: June 8, 2007
    Publication date: April 1, 2010
    Applicant: The University of Hong Kong
    Inventors: Joseph S.M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Publication number: 20090305282
    Abstract: The present invention provides the complete genomic sequence of a novel human coronavirus, coined as coronavirus-HKU1 (“CoV-HKU1”), isolated in Hong Kong from a patient who had a recent history of visit to Schenzhen. China. The virus belongs to the order Nidovirales of the family Coronavirdae, being a single-stranded RNA virus of positive polarity. The invention also provides the deduced amino acid sequences of the complete genome of the CoV-HKU1. The nucleotide sequences and deduced amino acid sequences of the CoV-HKU1 are useful in preventing, diagnosing and/or treating the infection by CoV-HKU1. Furthermore, the invention provides immunogenic and vaccine preparations using recombinant and chimeric forms as well as subunits of the CoV-HKU1 based on the nucleotide sequences and deduced amino acid sequences of the CoV-HKU1.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 10, 2009
    Inventors: KWOK YUNG YUEN, CHIU YAT PATRICK WOO, KAR PUI SUSANNA LAU, KWOK HUNG CHAN, LIT MAN POON, JOSEPH SRIYAL MALIK PEIRIS, YI GUAN
  • Patent number: 7605135
    Abstract: The present invention relates to a pharmaceutical composition useful for the treatment of diseases associated with viruses of the order Nidovirales of the family Coronaviradae, such as Severe Acute Respiratory Syndrome (SARS) viruses in humans and other animals. In particular, this invention relates to a naturally occurring compound, namely, baicalin, extracted and purified from the Chinese medicinal plant Scutellaria baicalensis Georgi (Chinese name: Huang Qin), that exhibits potent antiviral activity against members of the order Nidovirales of the family Coronaviradae that infects humans and other animals; in particular, SARS viruses in humans (“hSARS virus”). The invention also relates to a therapeutic method, using pharmaceutical compositions comprising baicalin compounds, for the treatment, amelioration, management or prevention of diseases associated with members of the order Nidovirales of the family Coronaviradae, such as hSARS.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: October 20, 2009
    Assignee: The University of Hong Kong
    Inventors: Kwok Yung Yuen, Feng Chen, Kwok Hung Chan, Yi Tsun Kao, Yi Guan, Leo Lit Man Poon, JSM Peiris
  • Patent number: 7553944
    Abstract: The present invention provides the complete genomic sequence of a novel human coronavirus, coined as coronavirus-HKU1 (“CoV-HKU1”), isolated in Hong Kong from a patient who had a recent history of visit to Schenzhen, China. The virus belongs to the order Nidovirales of the family Coronaviridae, being a single-stranded RNA virus of positive polarity. The invention also provides the deduced amino acid sequences of the complete genome of the CoV-HKU1. The nucleotide sequences and deduced amino acid sequences of the CoV-HKU1 are useful in preventing, diagnosing and/or treating the infection by CoV-HKU1. Furthermore, the invention provides immunogenic and vaccine preparations using recombinant and chimeric forms as well as subunits of the CoV-HKU1 based on the nucleotide sequences and deduced amino acid sequences of the CoV-HKU1.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: June 30, 2009
    Assignee: The University of Hong Kong
    Inventors: Kwok Yung Yuen, Chiu Yat Patrick Woo, Kar Pui Susanna Lau, Kwok Hung Chan, Lit Man Poon, Joseph Sriyal Malik Peiris, Yi Guan
  • Patent number: 7547512
    Abstract: The present invention relates to a high-throughput diagnostic assay for the virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). In particular, the invention relates to a high-throughput reverse transcription-PCR diagnostic test for SARS associated coronavirus (SARS-CoV). The present assay is a rapid, reliable assay which can be used for diagnosis and monitoring the spread of SARS and is based on the nucleotide sequences of the N (nucleocapsid)-gene of the hSARS virus. The present method eliminates false negative results and provides increased sensitivity for the assay. The invention also discloses the S (spike)-gene of the hSARS virus. The invention further relates to the deduced amino acid sequences of the N-gene and S-gene products of the hSARS virus and to the use of the N-gene and S-gene products in diagnostic methods. The invention further encompasses diagnostic assays and kits comprising antibodies generated against the N-gene or S-gene product.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 16, 2009
    Assignee: The University of Hong Kong
    Inventors: Joseph S. M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung
  • Patent number: 7375202
    Abstract: The present invention relates to an isolated novel virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). The hSARS virus is identified to be morphologically and phylogenetically similar to known member of Coronaviridae. The present invention provides the complete genomic sequence of the hSARS virus. Furthermore, the invention provides the nucleic acids and peptides encoded by and/or derived from the hSARS virus and their use in diagnostic methods and therapeutic methods, including vaccines. In addition, the invention provides chimeric or recombinant viruses encoded by said nucleotide sequences and antibodies immunospecific to the polypeptides encoded by the nucleotide sequences.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: May 20, 2008
    Assignee: The University of Hong Kong
    Inventors: Joseph S. M. Peiris, Kwok Yung Yuen, Lit Man Poon, Yi Guan, Kwok Hung Chan, John M. Nicholls, Frederick C. Leung