Patents by Inventor Wah Kit CHEUK

Wah Kit CHEUK 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: 20240130935
    Abstract: An inedible and dry dormant state encapsulated probiotic core-shell particle for external, non-mucosal skin application is provided. From inside out, the core-shell particle has a structure of a carrier particle core serving as a nutrient source for probiotics, a first layer including a dormant probiotic species for affecting epidermal biome and at least one prebiotic as a food source for the probiotic, a polymer layer positioned over the first layer, and a dissolvable protective layer for protecting the probiotic core-shell particle from oxidation, heat and humidity. By co-applying with a releasing medium, the dissolvable protective layer and the polymer layer are dissolved to expose the dormant probiotic containing layer, the first layer. Further, the releasing medium also is able to activate and reconstitute the dormant probiotic to a live probiotic on the applied non-mucosal epidermal surface.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Inventors: Chun Hay KO, Man Hon YUEN, Wah Kit CHEUK, Joo Ann EWE, Wing Man CHAN
  • Publication number: 20230320351
    Abstract: The present invention provides an antibacterial and antiviral fabric includes a fabric substrate and an antimicrobial coating. The antimicrobial coating formed on the fabric substrate having an antimicrobial agent embedded or surface-adherent in a three dimensional porous network of nano-binder particles. The three dimensional porous network is formed by connecting the nano-binder particles to each other via van der Waals force or coulombic force. The antibacterial and antiviral fabric has an antimicrobial effect of at least 99% while maintaining physical properties comparable to an uncoated fabric. The present invention also provides an antibacterial and antiviral formulation and a method of preparing antibacterial and antiviral nanoparticles.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Wah Kit CHEUK, Shi Min TAN, Cheuk Ka POON, Chun Hay KO, Wing Man CHAN
  • Patent number: 11096892
    Abstract: A film forming composition comprises a film forming component and a solvent, wherein the film forming component comprises 0-50 wt % of a first water soluble polymer, 0.3-40 wt % of a second water soluble polymer, 0-15 wt % of plasticizer and 50-70 wt % of active ingredient. The first and second water soluble polymers have a Tg of ?52° C. to 216° C., and difference of Tg values of the first and second water soluble polymer is 62-268° C. The film formed by the film forming composition capable to load high content of active ingredient and lead to fast absorption of active ingredient is provided.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 24, 2021
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Jinjie Xu, Sau Kuen Connie Kwok, Wah Kit Cheuk, Ying Li, Pak Ho Lau
  • Publication number: 20200129419
    Abstract: A film forming composition comprises a film forming component and a solvent, wherein the film forming component comprises 0-50 wt % of a first water soluble polymer, 0.3-40 wt % of a second water soluble polymer, 0-15 wt % of plasticizer and 50-70 wt % of active ingredient. The first and second water soluble polymers have a Tg of ?52° C. to 216° C., and difference of Tg values of the first and second water soluble polymer is 62-268° C. The film formed by the film forming composition capable to load high content of active ingredient and lead to fast absorption of active ingredient is provided.
    Type: Application
    Filed: March 13, 2018
    Publication date: April 30, 2020
    Applicant: Nano and Advanced Materials Institute Limited
    Inventors: Jinjie XU, Sau Kuen Connie KWOK, Wah Kit CHEUK, Ying LI, Pak Ho LAU
  • 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