Patents by Inventor Vincent Yiu Tak Chu

Vincent Yiu Tak Chu 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).

  • Rotary driving tool
    Patent number: D509719
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: September 20, 2005
    Assignee: Choon Nang Electrical Appliance Mfy., Ltd.
    Inventor: Vincent Yiu Tak Chu
  • Saw attachment for rotary driving tool
    Patent number: D519810
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: May 2, 2006
    Assignee: Choon Nang Electrical Appliance Mfy., Ltd.
    Inventor: Vincent Yiu Tak Chu
  • Electric saw
    Patent number: D534778
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: January 9, 2007
    Assignee: Choon Nang Electrical Appliance Mfy., Ltd.
    Inventor: Vincent Yiu Tak Chu
  • Electric sander
    Patent number: D539107
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: March 27, 2007
    Assignee: Choon Nang Electrical Appliance Mfy., Ltd.
    Inventor: Vincent Yiu Tak Chu
  • Electric cutter
    Patent number: D542108
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: May 8, 2007
    Assignee: Choon Nang Electrical Appliance Mfy., Ltd.
    Inventor: Vincent Yiu Tak Chu