Patents by Inventor Yi-Wei Chu

Yi-Wei 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).

  • Air impact wrench
    Patent number: D590226
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 14, 2009
    Assignee: Fairskq (Taiwan) Co., Ltd
    Inventor: Yi-Wei Chu
  • Pneumatic spanner
    Patent number: D602322
    Type: Grant
    Filed: December 23, 2007
    Date of Patent: October 20, 2009
    Inventor: Yi-Wei Chu
  • Pneumatic spanner
    Patent number: D604582
    Type: Grant
    Filed: December 23, 2007
    Date of Patent: November 24, 2009
    Inventor: Yi-Wei Chu