Patents by Inventor Sun-Wing Tong

Sun-Wing Tong 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).

  • Patent number: 7632671
    Abstract: The presence of a nucleic acid target, molecule or ligand can be detected by hybridization, antigen-antibody reaction or receptor-ligand binding. This is reported by the strategic positioning of a first probe and a second probe attached to a small particle of electrical conductor, which closes an electrical circuit, thereby reporting the event. A myriad of potential applications of this technique include the identification and detection of small amounts of nucleic acids by hybridization, the detection of molecules such as toxins and carcinogens by antigen-antibody reaction and the detection of other molecules by receptor-ligand interaction. The method can also be adapted to assay the quantity of a given substance using the principle of competitive binding.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: December 15, 2009
    Inventor: Sun-Wing Tong
  • Patent number: 7629114
    Abstract: The present invention provides a method of collecting nasopharyngeal specimens by introducing physiologic solution into the conjunctival sacs and collecting the irrigate that drains into the oroharynx. The invention further provides a kit to facilitate such a method. The present invention also provides a method of delivering a biological active to the eyes, nasal, nasopharyngeal, and oropharyngeal regions.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: December 8, 2009
    Assignee: World Sense Technology Limited
    Inventors: Sun-Wing Tong, Yi-Wei Tang
  • Patent number: 7501235
    Abstract: The present invention provides a method of testing for the presence of infectious disease agents or host genetic markers comprising applying a device comprising an absorbent and porous material onto the introitus of a female patient; encouraging air drying of at least a portion of the collected vaginal discharge while the device is proximate to the introitus; and determining the presence of infectious disease agents or host genetic markers in the at least partially dried vaginal discharge.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: March 10, 2009
    Inventors: Sun-Wing Tong, Olivia Wai-Hing Chan, Tat-Chong Chow, Vivian Yu
  • Patent number: 7163788
    Abstract: A method of detecting or quantifying a molecular target in a sample utilizing the molecular interaction between molecular targets, bead-bound probes, and support-bound probes. Laser light or a magnetic sensor may be used to detect the beads after the interaction. The detection of the beads indicates the presence of the molecular target in the sample.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: January 16, 2007
    Inventor: Sun-Wing Tong
  • Publication number: 20060166333
    Abstract: The present invention provides a method of testing for the presence of infectious disease agents or host genetic markers comprising applying a device comprising an absorbent and porous material onto the introitus of a female patient; encouraging air drying of at least a portion of the collected vaginal discharge while the device is proximate to the introitus; and determining the presence of infectious disease agents or host genetic markers in the at least partially dried vaginal discharge.
    Type: Application
    Filed: December 24, 2003
    Publication date: July 27, 2006
    Inventors: Sun-Wing Tong, Olivia Chan, Tat-Chong Chow, Vivian Yu
  • Publication number: 20050053996
    Abstract: The presence of a nucleic acid target, molecule or ligand can be detected by hybridization, antigen-antibody reaction or receptor-ligand binding. This is reported by the strategic positioning of a first probe and a second probe attached to a small particle of electrical conductor, which closes an electrical circuit, thereby reporting the event. A myriad of potential applications of this technique include the identification and detection of small amounts of nucleic acids by hybridization, the detection of molecules such as toxins and carcinogens by antigen-antibody reaction and the detection of other molecules by receptor-ligand interaction. The method can also be adapted to assay the quantity of a given substance using the principle of competitive binding.
    Type: Application
    Filed: October 18, 2004
    Publication date: March 10, 2005
    Inventor: Sun-Wing Tong
  • Publication number: 20050048465
    Abstract: The present invention provides a method of collecting nasopharyngeal specimens by introducing physiologic solution into the conjunctival sacs and collecting the irrigate that drains into the oroharynx. The invention further provides a kit to facilitate such a method. The present invention also provides a method of delivering a biological active to the eyes, nasal, nasopharyngeal, and oropharyngeal regions.
    Type: Application
    Filed: August 20, 2004
    Publication date: March 3, 2005
    Inventors: Sun-Wing Tong, Yi-Wei Tang
  • Publication number: 20050042604
    Abstract: The present invention relates to a method of determining whether a facility can effectively prevent the spread of an infectious disease by a) releasing an effective amount of biological tracers in or near the facility, to mimic the spread of pathogens that cause the infectious disease; and b) detecting the presence or amount of the biological tracers to determine the spread of the biological tracers in the environment of the facility. The present invention further provides a method and apparatus to generate aerosol that mimic the human sneeze and cough so as to more realistically determine the spread of an infectious disease by such a source.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 24, 2005
    Inventors: Sun-Wing Tong, Chun Liang
  • Publication number: 20030215825
    Abstract: A method of detecting or quantifying a molecular target in a sample utilizing the molecular interaction between molecular targets, bead-bound probes, and support-bound probes. Laser light or a magnetic sensor may be used to detect the beads after the interaction. The detection of the beads indicates the presence of the molecular target in the sample.
    Type: Application
    Filed: November 12, 2002
    Publication date: November 20, 2003
    Inventor: Sun-Wing Tong