Patents by Inventor Liangjun Chen

Liangjun Chen 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).

  • In-car bluetooth transmitter
    Patent number: D900052
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: October 27, 2020
    Inventor: Liangjun Chen
  • Control panel for in-car bluetooth transmitter
    Patent number: D906999
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: January 5, 2021
    Inventor: Liangjun Chen
  • Curtain magnetic button
    Patent number: D983025
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: April 11, 2023
    Inventor: Liangjun Chen
  • Vacuum cleaner
    Patent number: D1113010
    Type: Grant
    Filed: July 10, 2024
    Date of Patent: February 10, 2026
    Inventor: Liangjun Chen