Patents by Inventor Ping Cheung Wong

Ping Cheung Wong 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 fan
    Patent number: D483468
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: December 9, 2003
    Assignee: IMS International Ltd.
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D483852
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: December 16, 2003
    Assignee: IMS International Ltd.
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D484965
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: January 6, 2004
    Assignee: IMS International Ltd.
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D569961
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 27, 2008
    Assignee: IMS International Ltd.
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D799674
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: October 10, 2017
    Assignee: IMS INTERNATIONAL LTD
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D799675
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 10, 2017
    Assignee: IMS INTERNATIONAL LTD
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D799676
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: October 10, 2017
    Assignee: IMS International Ltd
    Inventor: Ping Cheung Wong
  • Electric fan
    Patent number: D804642
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: December 5, 2017
    Assignee: IMS International Ltd
    Inventor: Ping Cheung Wong