Patents by Inventor Zhenfeng Qiu

Zhenfeng Qiu 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).

  • Hair clipper
    Patent number: D968024
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: October 25, 2022
    Assignee: WAHL CLIPPER CORPORATION
    Inventors: Zhenfeng Qiu, Tangwen Xu, Qing Wang
  • Hair clipper
    Patent number: D973278
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: December 20, 2022
    Assignee: WAHL CLIPPER CORPORATION
    Inventors: Connor Brandt, Zhenfeng Qiu, Yingchang Ma, Qing Wang
  • Hair clipper lid
    Patent number: D973279
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: December 20, 2022
    Assignee: WAHL CLIPPER CORPORATION
    Inventors: Connor Brandt, Zhenfeng Qiu, Yingchang Ma, Qing Wang