Patents by Inventor Hongliu Li

Hongliu Li 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).

  • Publication number: 20040244133
    Abstract: A floor mop for use with any washable fabric sheet or cloth of approximately right size is provided, comprising a flat rectangular plate as mop head with a top surface and a bottom surface, the top surface being attached to an elongated handle by a universal joint means, and the bottom surface being planar and covered with a layer of elastic plate with rough surface permanently. On the top surface of said plate, at least two spring operated clips with saw teeth front portion is permanently placed on each corner or two sides. Any fabric sheet suitable for floor washing (such as used/new bath tower cut to approximately right size) can be secured in place to said mop head to cover the bottom surface of said mop head through using said clips. This mop art enable mop user to replace worn mop sheet with any easily obtainable fabric sheets or cloths besides manufacture specified cleaning sheet products.
    Type: Application
    Filed: June 4, 2003
    Publication date: December 9, 2004
    Inventor: Hongliu Li