Patents by Inventor Changpei Bi

Changpei Bi 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).

  • Watch band clasp
    Patent number: D963511
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: September 13, 2022
    Inventor: Changpei Bi
  • Watch band clasp
    Patent number: D963512
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: September 13, 2022
    Inventor: Changpei Bi
  • Watch band clasp
    Patent number: D980111
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: March 7, 2023
    Inventor: Changpei Bi