Patents by Inventor Chen-Ching Tseng

Chen-Ching Tseng 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).

  • Mop bucket
    Patent number: D632446
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: February 8, 2011
    Inventor: Chen-Ching Tseng
  • Double driver mop bucket
    Patent number: D645628
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: September 20, 2011
    Inventor: Chen-Ching Tseng
  • Mop head for a mop
    Patent number: D683509
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: May 28, 2013
    Inventor: Chen-Ching Tseng