Patents by Inventor Chenhan Li

Chenhan Li 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).

  • Dog pinch collar
    Patent number: D979861
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 28, 2023
    Inventor: Chenhan Li
  • Pet collar
    Patent number: D989414
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: June 13, 2023
    Inventor: Chenhan Li
  • Pet collar
    Patent number: D989415
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: June 13, 2023
    Inventor: Chenhan Li
  • Elizabethan pet collar
    Patent number: D1007775
    Type: Grant
    Filed: March 18, 2023
    Date of Patent: December 12, 2023
    Inventor: Chenhan Li
  • Pet steps
    Patent number: D1007787
    Type: Grant
    Filed: June 20, 2023
    Date of Patent: December 12, 2023
    Inventor: Chenhan Li
  • Toss game
    Patent number: D1064074
    Type: Grant
    Filed: December 10, 2024
    Date of Patent: February 25, 2025
    Inventor: Chenhan Li
  • Pet collar
    Patent number: D1073207
    Type: Grant
    Filed: December 4, 2024
    Date of Patent: April 29, 2025
    Inventor: Chenhan Li
  • Ring toss game
    Patent number: D1077912
    Type: Grant
    Filed: January 14, 2025
    Date of Patent: June 3, 2025
    Inventor: Chenhan Li
  • Croquet stick
    Patent number: D1109265
    Type: Grant
    Filed: January 16, 2025
    Date of Patent: January 13, 2026
    Inventor: Chenhan Li