Patents by Inventor Chun Sing LEUNG

Chun Sing LEUNG 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).

  • Launderable bactericidal and virucidal fabric finish
    Patent number: 11856953
    Abstract: A launderable bactericidal and virucidal fabric finish formulation. The first component is a bactericidal and virucidal agent represented by formula (I): wherein n is 7; R1, R2, and R3 are jointly or independently selected from H or one of the following groups: wherein R4 is selected from CH3 or H; m is an integer from 2 to 10; p is an integer from 9 to 15; q is an integer from 2 to 10. A second component includes one or more crosslinkers and/or one or more catalysts. A third component includes one or more transition metal salts.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: January 2, 2024
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Wing Nien Wylie O, Tsz Hin Yui, Chi Yin Leung, Chun Sing Leung, Ka Yim Yeung
  • LAUNDERABLE BACTERICIDAL AND VIRUCIDAL FABRIC FINISH
    Publication number: 20220287304
    Abstract: A launderable bactericidal and virucidal fabric finish formulation. The first component is a bactericidal and virucidal agent represented by formula (I): wherein n is 7; R1, R2, and R3 are jointly or independently selected from H or one of the following groups: wherein R4 is selected from CH3 or H; m is an integer from 2 to 10; p is an integer from 9 to 15; q is an integer from 2 to 10. A second component includes one or more crosslinkers and/or one or more catalysts. A third component includes one or more transition metal salts.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 15, 2022
    Inventors: Wing Nien Wylie O, Tsz Hin YUI, Chi Yin LEUNG, Chun Sing LEUNG, Ka Yim YEUNG