Patents by Inventor Ming-Hwa Liang

Ming-Hwa Liang 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: 20230304083
    Abstract: The present invention provides methods of producing single-stranded DNA (ssDNA) from a double-stranded DNA (dsDNA) template. The method includes selecting either the (+)-strand or the (?)-strand of a dsDNA template as a target ssDNA, wherein if the target ssDNA is the (+)-strand of the dsDNA template, a biotin label is added onto the reverse primer, and wherein if the target ssDNA is the (?)-strand of the dsDNA template, a biotin label is added onto the forward primer. Next PCR is performed to produce biotinylated dsDNA fragments. Once the PCR is terminated, the biotinylated dsDNA fragments are purified. Next the target ssDNA is separated from the biotinylated dsDNA by immobilizing the biotinylated dsDNA onto a surface and precipitating the target ssDNA.
    Type: Application
    Filed: January 11, 2023
    Publication date: September 28, 2023
    Inventors: Yuhua Sun, Ming-Hwa Liang
  • Publication number: 20210292820
    Abstract: The present invention relates generally to PCR-based in vitro diagnostics and methods of treatment for SARS-CoV-2, the virus that causes COVID-19, and more specifically, to compositions and methods for the detection of wildtype and variants of SARS-CoV-2 in a patient specimen and methods of treating SARS-CoV-2 based on said detection.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 23, 2021
    Inventors: Yuhua Sun, Ming-Hwa Liang
  • Patent number: 8940485
    Abstract: Methods for distinguishing between cotton cultivars of a specific species by analyzing a sample of mature cotton fibers from raw cotton materials or from textile goods are disclosed. DNA is extracted from the mature cotton fiber sample and subjected to PCR techniques which enable the identification of the cultivar of a particular cotton species utilized in the textile or cotton material of interest.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: January 27, 2015
    Assignee: APDN (B.V.I.) Inc.
    Inventors: Ming-Hwa Liang, Stephane Shu Kin So
  • Patent number: 8669079
    Abstract: Methods for distinguishing between cotton species by analyzing a sample of mature cotton fibers from raw cotton materials or from textile goods are disclosed. DNA is extracted from the mature cotton fiber sample and subjected to PCR techniques which enable the identification of the species of cotton utilized in the textile or cotton material of interest.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: March 11, 2014
    Assignee: Cara Therapeutics, Inc.
    Inventors: Ming-Hwa Liang, Stephane Shu Kin So
  • Patent number: 8426216
    Abstract: This invention pertains to methods for authenticating an article comprising tagging the article with light emitting optical reporter particles, and more specifically tagging the articles with up-converting phosphor particles (UCP), linked to nucleic acids of detectable sequence.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 23, 2013
    Assignee: APDN (B.V.I.), Inc.
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Patent number: 8420400
    Abstract: A method for authenticating and verifying a pharmaceutical item to be genuine is described. The method for authenticating a tablet comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to a tablet or capsule. The method also comprises collecting a sample of the tablet and verifying the tablet is genuine by detecting the particular nucleic acid material.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 16, 2013
    Assignee: APDN (B.V.I.), Inc.
    Inventors: James A. Hayward, Ming-Hwa Liang, Stephane Shu-Kin-So
  • Patent number: 8415165
    Abstract: A method for authenticating and verifying garment to be genuine is described. The method for authenticating a garment comprises applying a particular nucleic acid material/marker associated with a particular sequence of nucleic acid bases to a dye or paint and applying the marker to the garment. The method also comprises collecting a sample from the garment and verifying the garment is genuine by detecting the particular nucleic acid material on or within the garment.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 9, 2013
    Assignee: APDN (B.V.I.), Inc.
    Inventors: Ming-Hwa Liang, Stephane Shu Kin So, James Hayward
  • Patent number: 8415164
    Abstract: A method for authenticating and verifying an item to be genuine is described. The method for authenticating the item comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to ink within an ink cartridge or a toner compound within a toner housing. The method also comprises collecting a sample of either the ink or toner compound and verifying the ink or toner is genuine by detecting the particular nucleic acid material.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: April 9, 2013
    Assignee: APDN (B.V.I.) Inc.
    Inventors: James A. Hayward, Ming-Hwa Liang, John Davis
  • Patent number: 8372648
    Abstract: This invention provides compositions that have a light emitting reporter linked to biomolecules, preferably, nucleotide oligomers. The light reporter particles are silylated and functionalized to produce a coated light reporter particle, prior to covalently linking the biomolecules to the light reporter particle. The light reporter particles of the invention can be excited by a light excitation source such as UV or IR light, and when the biomolecule is DNA, the attached DNA molecule(s) are detectable by amplification techniques such as PCR.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: February 12, 2013
    Assignee: APDN (B.V.I.), Inc.
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20120252025
    Abstract: A method to link a light emitting reporter to biomolecules with nucleotide oligomers is described. The light reporter particles are silylated and functionalized to produce a coated light reporter particle, prior to covalently linking the biomolecules to the light reporter particle. The light reporter particle generated by the methods of the invention can be excited by a light excitation source such as UV or IR light, and when the biomolecule is DNA, the attached DNA molecule(s) are detectable by amplification techniques such as PCR.
    Type: Application
    Filed: January 24, 2012
    Publication date: October 4, 2012
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Patent number: 8124333
    Abstract: A method to link a light emitting reporter to biomolecules with nucleotide oligomers is described. The light reporter particles are silylated and functionalized to produce a coated light reporter particle, prior to covalently linking the biomolecules to the light reporter particle. The light reporter particle generated by the methods of the invention can be excited by a light excitation source such as UV or IR light, and when the biomolecule is DNA, the attached DNA molecule(s) are detectable by amplification techniques such as PCR.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: February 28, 2012
    Assignee: APDN, Inc.
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20110250594
    Abstract: Methods for distinguishing between cotton species by analyzing a sample of mature cotton fibers from raw cotton materials or from textile goods are disclosed. DNA is extracted from the mature cotton fiber sample and subjected to PCR techniques which enable the identification of the species of cotton utilized in the textile or cotton material of interest.
    Type: Application
    Filed: November 12, 2008
    Publication date: October 13, 2011
    Inventors: Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20100279282
    Abstract: Methods for distinguishing between cotton cultivars of a specific species by analyzing a sample of mature cotton fibers from raw cotton materials or from textile goods are disclosed. DNA is extracted from the mature cotton fiber sample and subjected to PCR techniques which enable the identification of the cultivar of a particular cotton species utilized in the textile or cotton material of interest.
    Type: Application
    Filed: November 12, 2008
    Publication date: November 4, 2010
    Inventors: Ming-Hwa Liang, Stephane Suh Kin So
  • Publication number: 20090075261
    Abstract: A method for authenticating and verifying a pharmaceutical item to be genuine is described. The method for authenticating a tablet comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to a tablet or capsule. The method also comprises collecting a sample of the tablet and verifying the tablet is genuine by detecting the particular nucleic acid material.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 19, 2009
    Inventors: JAMES A. HAYWARD, MING-HWA LIANG, STEPHANE SHU-KIN-SO
  • Publication number: 20090042191
    Abstract: A method for authenticating and verifying an item to be genuine is described. The method for authenticating the item comprises applying a particular nucleic acid material associated with a particular sequence of nucleic acid bases to ink within an ink cartridge or a toner compound within a toner housing. The method also comprises collecting a sample of either the ink or toner compound and verifying the ink or toner is genuine by detecting the particular nucleic acid material.
    Type: Application
    Filed: December 11, 2007
    Publication date: February 12, 2009
    Inventors: James A. Hayward, Ming-Hwa Liang, John Davis
  • Publication number: 20080312427
    Abstract: A method to link a light emitting reporter to biomolecules with nucleotide oligomers is described. The light reporter particles are silylated and functionalized to produce a coated light reporter particle, prior to covalently linking the biomolecules to the light reporter particle. The light reporter particle generated by the methods of the invention can be excited by a light excitation source such as UV or IR light, and when the biomolecule is DNA, the attached DNA molecule(s) are detectable by amplification techniques such as PCR.
    Type: Application
    Filed: December 11, 2007
    Publication date: December 18, 2008
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20080299559
    Abstract: This invention pertains to methods for authenticating an article comprising tagging the article with light emitting optical reporter particles, and more specifically tagging the articles with up-converting phosphor particles (UCP), linked to nucleic acids of detectable sequence.
    Type: Application
    Filed: December 11, 2007
    Publication date: December 4, 2008
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20080299667
    Abstract: This invention provides compositions that have a light emitting reporter linked to biomolecules, preferably, nucleotide oligomers. The light reporter particles are silylated and functionalized to produce a coated light reporter particle, prior to covalently linking the biomolecules to the light reporter particle. The light reporter particles of the invention can be excited by a light excitation source such as UV or IR light, and when the biomolecule is DNA, the attached DNA molecule(s) are detectable by amplification techniques such as PCR.
    Type: Application
    Filed: December 11, 2007
    Publication date: December 4, 2008
    Inventors: Thomas Kwok, Ming-Hwa Liang, Stephane Shu Kin So
  • Publication number: 20080293052
    Abstract: A method for authenticating and verifying garment to be genuine is described. The method for authenticating a garment comprises applying a particular nucleic acid material/marker associated with a particular sequence of nucleic acid bases to a dye or paint and applying the marker to the garment. The method also comprises collecting a sample from the garment and verifying the garment is genuine by detecting the particular nucleic acid material on or within the garment.
    Type: Application
    Filed: December 11, 2007
    Publication date: November 27, 2008
    Inventors: Ming-Hwa Liang, Stephane Shu Kin So, James Hayward
  • Publication number: 20070048761
    Abstract: A method for authenticating a product where the product is composed of a plurality of components is described. The method for authenticating the product comprises providing a liquid compound, e.g. paint, that comprises at least one invisible market, e.g. nucleic acid, in which the compound is associated with a first entity. The method then proceeds to apply the compound to the surface of the product at the juncture of at least two components. The method also comprises associating the application of the compound to the at least two components with the first entity.
    Type: Application
    Filed: May 19, 2006
    Publication date: March 1, 2007
    Inventors: Paul Reep, Ming-Hwa Liang, Sheu Jun-Jei