Patents by Inventor Chi-Chiu Ko

Chi-Chiu Ko 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: 20230063903
    Abstract: A photochemical method for chemical modification of a hydrophilic material to provide the surface of the material with hydrophobic properties. The method comprises functionalizing the surface to provide an amine group thereon, and then functionalizing the surface photo-catalytically to provide perfluoroalkanamide thereon. Alternatively, the method comprises reacting a silane moiety functional group on the surface of the material with a perfluoroalkylhalide in the presence of a photo-catalyst and light.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 2, 2023
    Inventors: Chi-Chiu KO, Yelan XIAO
  • Publication number: 20220390427
    Abstract: An apparatus, a system, sensor, and a method for determining dissolved oxygen content in air and aqueous medium are disclosed herein. The dissolved oxygen content may be determined by irradiating the sensor comprising at least a photo-oxidizable compound by a light irradiation source, wherein the irradiation enables the photo-oxidizable compound to change its luminescent properties based upon photo-oxidation thereby enabling the quantification of the dissolved oxygen content in the medium. The dissolved oxygen content may be captured via the impedance response generated by interdigitated conducting electrode patterns included in the sensor. The dissolved oxygen content registered by the interdigitated conducting electrode patterns may be transmitted to a user device via a short range or long-range communication via an electronic circuit embedded within the sensor.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 8, 2022
    Inventors: Shiu Sun Wu, Chi Chiu Ko, Arul Lenus Roy Vellaisamy, Man Ying Chiu
  • Patent number: 10940459
    Abstract: Molecularly imprinted polymers (MIPs) capable of binding acetate and other target molecules, processes for their production, pharmaceutical compositions comprising the MIPs, and methods of using the MIPs and pharmaceutical compositions for binding target molecules and for treating conditions associated with accumulation of acetate and other target molecules.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 9, 2021
    Assignee: CLAVES LIFE SCIENCES LIMITED
    Inventors: Chi Chiu Ko, Wai Yip Thomas Lee, Chung Sing Daniel Poon, Ka Lun Lai
  • Patent number: 10828322
    Abstract: Molecularly imprinted polymers (MIPs) capable of binding acetate and other target molecules, processes for their production, pharmaceutical compositions comprising the MIPs, and methods of using the MIPs and pharmaceutical compositions for binding target molecules and for treating conditions associated with accumulation of acetate and other target molecules.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: November 10, 2020
    Assignee: CLAVES LIFE SCIENCES LIMITED
    Inventors: Chi Chiu Ko, Wai Yip Thomas Lee, Chung Sing Daniel Poon, Ka Lun Lai
  • Patent number: 8107150
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: January 31, 2012
    Assignee: Versitech Limited
    Inventors: Vivian Wing-Wah Yam, Chi-Chiu Ko
  • Patent number: 7755826
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: July 13, 2010
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Chi-Chiu Ko
  • Publication number: 20100137596
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Application
    Filed: January 26, 2010
    Publication date: June 3, 2010
    Inventors: Vivian Wing-Wah Yam, Chi-Chiu Ko
  • Patent number: 7355775
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: April 8, 2008
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Chi-Chiu Ko
  • Publication number: 20070057240
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Application
    Filed: November 13, 2006
    Publication date: March 15, 2007
    Inventors: Vivian Yam, Chi-Chiu Ko
  • Publication number: 20050033072
    Abstract: Diarylethene-containing ligands and their coordination compounds are described. The ligands display photochromism with UV excitation, while the coordination compounds display photochromism with both excitation in the UV region and excitation into lower energy absorption bands characteristic of the coordination compounds, through which the excitation wavelengths for the photocyclization can be extended from ??340 nm to wavelengths beyond 470 nm. Switching of the luminescence properties of the compounds has also been achieved through photochromic reactions.
    Type: Application
    Filed: July 6, 2004
    Publication date: February 10, 2005
    Inventors: Vivian Yam, Chi-Chiu Ko