Patents by Inventor Changmei Long

Changmei Long 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).

  • Projector
    Patent number: D895714
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: September 8, 2020
    Assignee: DONGGUAN MIWEISHI DIGITAL TECHNOLOGY CO., LTD.
    Inventor: Changmei Long
  • Projector
    Patent number: D896300
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 15, 2020
    Inventor: Changmei Long
  • Projector
    Patent number: D967236
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 18, 2022
    Inventor: Changmei Long