Patents by Inventor Zhangli Lan

Zhangli Lan 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).

  • Retractable leash handle for animals
    Patent number: D829389
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: September 25, 2018
    Inventors: Zhangli Lan, Jian Li, Yukun Yang, Chunyan Yang
  • Retractable dog leash
    Patent number: D882884
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: April 28, 2020
    Inventors: Zhangli Lan, Yukun Yang, Jian Li
  • Bark control
    Patent number: D888353
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 23, 2020
    Inventors: Zhangli Lan, Yukun Yang, Jian Li
  • Pet poop bag dispenser
    Patent number: D878074
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 17, 2020
    Inventors: Zhangli Lan, Yukun Yang, Jian Li
  • Pet feeding bowl
    Patent number: D907307
    Type: Grant
    Filed: October 14, 2018
    Date of Patent: January 5, 2021
    Inventors: Zhangli Lan, Yukun Yang, Jian Li
  • Combined dog training device and remote control
    Patent number: D991592
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: July 4, 2023
    Inventors: Zhangli Lan, Yukun Yang, Jian Li, Sheng Lan
  • Dog training device
    Patent number: D1001398
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: October 10, 2023
    Inventors: Zhangli Lan, Yukun Yang, Jian Li
  • Water dispenser for pets
    Patent number: D1009384
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: December 26, 2023
    Inventors: Zhangli Lan, Yukun Yang, Jian Li