Patents by Inventor Mei Nuan Hsieh

Mei Nuan Hsieh 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 having changeable structure for changing mop member
    Patent number: 6481042
    Abstract: A mop includes a bracket, a mop member engaged on the bracket. a frame engaged on the mop member and secured to the bracket for securing the mop member between the bracket and the frame. The frame includes a channel formed between two flanges for slidably and detachably receiving a bar. The bar includes a fastener detachably secured to a rod. A housing is engaged onto the bar and the frame for stably retaining the bar in the frame. The bar may be disengaged from the housing and the rod and the frame, and the frame may be removed from the bracket for changing the mop member.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: November 19, 2002
    Inventor: Mei Nuan Hsieh