Patents by Inventor Stephen Tzou

Stephen Tzou 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).

  • Cosmetic jar
    Patent number: D959989
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: August 9, 2022
    Assignee: HCT GROUP HOLDINGS LIMITED
    Inventors: Stephen Tzou, Jae Bin, Leonardo Ferro
  • Cosmetic pump container
    Patent number: D1020478
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: April 2, 2024
    Assignee: HCT GROUP HOLDINGS LIMITED
    Inventor: Stephen Tzou
  • Cosmetic jar
    Patent number: D1079480
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: June 17, 2025
    Assignee: HCT GROUP HOLDINGS LIMITED
    Inventors: Stephen Tzou, Jae Bin, Leonardo Ferro
  • Cosmetic tool
    Patent number: D1079119
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: June 10, 2025
    Assignee: HCT GROUP HOLDINGS LIMITED
    Inventors: Stephen Tzou, Denis Maurin