Patents by Inventor Chung Chi Ping

Chung Chi Ping 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).

  • Electric broom
    Patent number: D424263
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: May 2, 2000
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Cesare Mario Canni Ferrari, Timmy H. Y. Sin, Chung Chi Ping