Patents by Inventor Zaihua Cheng

Zaihua Cheng 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).

  • Replacement headband cushion
    Patent number: D1008230
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: December 19, 2023
    Inventor: Zaihua Cheng
  • Replacement headband cushion
    Patent number: D1071898
    Type: Grant
    Filed: January 14, 2025
    Date of Patent: April 22, 2025
    Inventor: Zaihua Cheng