Patents by Inventor Chinh Duy Pham

Chinh Duy Pham 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).

  • Patent number: 10154773
    Abstract: An adhesive cleaning system for cleaning surfaces provided with a cleaning unit including at least two support arms in a spaced apart and parallel relationship with each other. Each of the support arms has a stop edge, a free end and at least one annular ridge. A first roller and a second roller each include a roller core rotatably receiving at least one of the support arms, respectively. An adhesive sheet is transferable between the rollers, with the adhesive sheet including a release liner, a first adhesive layer, a second adhesive layer and a backing layer. During use the first adhesive layer is exposed when wound on one of the rollers, with the second adhesive layer is exposed when transferred to the other roller, thereby provide multiple uses of the adhesive sheet.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 18, 2018
    Inventor: Chinh Duy Pham