Patents by Inventor Connie Sau-Kuen Kwok

Connie Sau-Kuen Kwok 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: 20200269193
    Abstract: A water filtration membrane is provided, capable of removing heavy metal ions, filtering out particulates, filtering out bacteria, as well as removing herbicides and volatile organic compounds (VOCs) from water. The membrane is composed of a mat of randomly oriented nanoparticle-coated nanofibers. The nanofibers are covalently bonded to a plurality of substantially uniformly-distributed ceramic nanoparticles embedded in or adhered on the surface of the polymer nanofibers through reactive functional groups. The ceramic nanoparticles have a pattern of deep grooves formed on the nanoparticle surfaces. The bonding of the nanoparticles to the nanofibers is sufficient to retain the nanoparticles on the nanofiber surfaces when water flows through the water filtration membrane. The diameter of the nanofibers is 50-200 nm. The size of the nanoparticles is <40 nm, with a zeta potential of ?40 to ?45 mV in a dispersion medium. The nanoparticle deep grooves have an average size of approximately 1.2 nm or less.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Inventors: Ho Wang TONG, Yu Hang LEUNG, Arthur Hong Kin KWONG, Connie Sau Kuen KWOK
  • Patent number: 10603230
    Abstract: A membrane for skin comprising a plurality of randomly oriented core-shell nanofibers is provided in the present invention, where each of said core-shell nanofibers comprises at least an active-ingredient-loaded polymeric core and a non-polymeric shell consisting of active ingredients only surrounding the core. Related fabrication method of said membrane is also provided in the present invention.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: March 31, 2020
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Ho Wang Tong, Connie Sau Kuen Kwok
  • Publication number: 20200046640
    Abstract: Nano-crystallized herbal ingredient-containing package for use in a food processor or being used directly to prepare an herbal decoction is provided. The nano-crystallized herbal ingredient-containing package comprises a housing; single or multiple herbal ingredient nano-crystals; one or more non-additive and anti-caking spacers for preventing from caking to block solvent flowing through the package towards said single or multiple herbal ingredient nano-crystals during processing by the food processor; and optionally one or more stabilizing agents for stabilizing said single or multiple herbal ingredient nano-crystals during nano-crystallization of the herbal ingredients and during preparation of said herbal decoction. A method of preparing a herbal decoction from the said package is also provided.
    Type: Application
    Filed: January 17, 2019
    Publication date: February 13, 2020
    Inventors: Chun Hay KO, Connie Sau Kuen KWOK, Chun Fai NG, Ka Man TSE, Ying Ying NG
  • Publication number: 20200017665
    Abstract: The present invention provides a germ-repellent polymer composition comprising: a base polymer selected from one or more of polyethylene, polypropylene, poly(lactic acid), polyhydroxylalkanoates, or copolymers or mixtures thereof; a germ-repelling modifier selected from a glycerol ester; and a nucleating agent.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: Michael Kwun Fung LO, Sheung Yi LI, Chris You WU, Chen CHEN, Connie Sau Kuen KWOK
  • Publication number: 20200017680
    Abstract: The present invention provides a biodegradable polymer composition having an elongation-at-break of at least 200 percent comprising a polylactic acid-based polymer and a mechanical performance modifier, wherein addition of the mechanical performance modifier to the biodegradable polymer increases the elongation-at-break to at least 200 percent while retaining at least 75 percent of the tensile strength of unmodified polylactic acid polymer and wherein the melting temperature of the biodegradable polymer is within 5 degrees Celsius of the melting temperature of unmodified polylactic acid polymer. In one embodiment, the mechanical performance modifier is poly(ethylene glycol) sorbitol hexaoleate. In another embodiment, the mechanical performance modifier is polycaprolactone.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: Michael Kwun Fung LO, Chris You WU, Sheung Yi LI, Connie Sau Kuen KWOK
  • Publication number: 20200017658
    Abstract: The present invention provides a germ-repellent elastomer comprising: a base polymer selected from latex, synthetic rubber, thermoplastic elastomers, or copolymers or mixtures thereof; and at least one germ-repelling modifier selected from one or more polyethoxylated non-ionic surfactants such that a highly hydrophilic moiety is imparted from the at least one germ-repelling modifier to the base polymer either by physical or reaction extrusion.
    Type: Application
    Filed: May 8, 2019
    Publication date: January 16, 2020
    Inventors: Xianqiao LIU, Michael Kwun Fung LO, Chen CHEN, Deryck Hin Yeung LI, Connie Sau Kuen KWOK
  • Patent number: 10434193
    Abstract: The present invention relates to a composition for use as a contrast agent in medical imaging. The composition comprises a metal ion containing compound comprises at least one metal ion adapted to bind with one or more metal ion chelating agents; wherein said one or more metal ion chelating agents comprise at least one first chelating agent adapted to target a region of interest being imaged, and at least one second chelating agent having at least one functional group adapted to dissociate in an aqueous medium to thereby allow or enhance contrast of the region of interest under the medical imaging. The present invention further relates to a diagnostic agent for use in amyloid (A?) protein detection under magnetic resonance imaging (MRI) comprising the above described composition; and a method of preparing thereof.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 8, 2019
    Assignee: Jacobson Research Laboratory Limited
    Inventors: Connie Sau-Kuen Kwok, Kwok Kin Cheng
  • Publication number: 20180236108
    Abstract: The present invention relates to a composition for use as a contrast agent in medical imaging. The composition comprises a metal ion containing compound comprises at least one metal ion adapted to bind with one or more metal ion chelating agents; wherein said one or more metal ion chelating agents comprise at least one first chelating agent adapted to target a region of interest being imaged, and at least one second chelating agent having at least one functional group adapted to dissociate in an aqueous medium to thereby allow or enhance contrast of the region of interest under the medical imaging. The present invention further relates to a diagnostic agent for use in amyloid (A?) protein detection under magnetic resonance imaging (MRI) comprising the above described composition; and a method of preparing thereof.
    Type: Application
    Filed: December 5, 2017
    Publication date: August 23, 2018
    Inventors: Connie Sau-Kuen Kwok, Kwok Kin Cheng
  • Publication number: 20180236107
    Abstract: The present invention relates to a particle composition for use as a contrasting agent in medical imaging such as Magnetic Resonance Imaging (MRI), the particle composition comprising: a metal containing compound comprises at least one metal complexed with at least one metal chelating agent; wherein the metal chelating agent is adapted to bind to one or more protein molecules to thereby allow or enhance visibility of the protein molecules under the medical imaging. The present invention further relates to a diagnostic agent for use in magnetic resonance imaging (MRI) comprising the above described particle composition; and a method of preparing thereof.
    Type: Application
    Filed: February 20, 2017
    Publication date: August 23, 2018
    Inventors: Connie Sau-Kuen Kwok, Kwok Kin Cheng
  • Publication number: 20180125729
    Abstract: A membrane for skin comprising a plurality of randomly oriented core-shell nanofibers is provided in the present invention, where each of said core-shell nanofibers comprises at least an active-ingredient-loaded polymeric core and a non-polymeric shell consisting of active ingredients only surrounding the core. Related fabrication method of said membrane is also provided in the present invention.
    Type: Application
    Filed: October 19, 2017
    Publication date: May 10, 2018
    Inventors: Ho Wang TONG, Connie Sau Kuen KWOK
  • Patent number: 9957396
    Abstract: The presently claimed invention provides a coating composition for an antimicrobial coating, and a method for synthesizing the coating composition. A coating method for deposition of the antibacterial coating is also provided. The antimicrobial coating of the present invention is effective in providing antimicrobial function, easy to be manufactured, stable and durable.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: May 1, 2018
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Ngar Yee Huen, Connie Sau Kuen Kwok, Wah Kit Cheuk
  • Publication number: 20160032113
    Abstract: The presently claimed invention provides a coating composition for an antimicrobial coating, and a method for synthesizing the coating composition. A coating method for deposition of the antibacterial coating is also provided. The antimicrobial coating of the present invention is effective in providing antimicrobial function, easy to be manufactured, stable and durable.
    Type: Application
    Filed: November 27, 2014
    Publication date: February 4, 2016
    Inventors: Ngar Yee HUEN, Connie Sau Kuen KWOK, Wah Kit CHEUK
  • Publication number: 20140242363
    Abstract: The presently claimed invention provides a coating solution for an antibacterial coating, and a method for synthesizing the coating solution. The coating solution comprises ethanol, nitric acid, titanium tetraisopropoxide, water, and silver nitrate. Furthermore, a coating method for deposition of the antibacterial coating is also provided. The antibacterial coating of the present invention is effective in providing antibacterial function, easy to be manufactured, and durable.
    Type: Application
    Filed: December 30, 2013
    Publication date: August 28, 2014
    Applicant: Nano and Advanced Materials Institute Limited
    Inventors: Ngar Yee HUEN, Connie Sau Kuen KWOK, Wing Kei HO, Peter Wai Man LEE
  • Publication number: 20080029084
    Abstract: What is described is a means for creating bimodal particle size distribution that targets both nasal cavity and pulmonary regions for drug delivery.
    Type: Application
    Filed: July 6, 2007
    Publication date: February 7, 2008
    Applicant: NASTECH PHARMACEUTICAL COMPANY INC.
    Inventors: Henry R. Costantino, Roger C. Adami, Connie Sau-Kuen Kwok
  • Patent number: 6444217
    Abstract: The present invention provides biomedical devices, such as implantable drug delivery devices that possess a surface layer adapted to retain, and controllably release, drug molecules for administration to a subject. The present invention also provides methods of delivering a drug to a subject, the methods utilizing biomedical devices of the invention.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: September 3, 2002
    Assignee: University of Washington
    Inventors: Connie Sau-Kuen Kwok, Buddy D. Ratner, Pierre D. Mourad, Lawrence A. Crum