Patents by Inventor Song Zhengxing

Song Zhengxing 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).

  • Floor plank
    Patent number: 7322159
    Abstract: The floor plank is a laminate of two layers of flexible plastic sheet material laminated together in offset relationship to define an offset marginal portion for each of the layers. Each of the offset marginal portions have oppositely facing adhesive coated surfaces. A foam layer and/or a fiberglass sheet can also be included in the laminate structure of the floor plank. The floor plank can conform to surface contours of a floor base. The bottom layer of the floor plank, whether it is plastic sheet or foam, is conformable to surface irregularities of the floor base. A one piece releasable packaging device covers the oppositely facing adhesive coated surfaces of the offset marginal portions.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 29, 2008
    Assignee: Tru Woods Limited
    Inventors: Norman Stone, Song Zhengxing
  • Floor plank
    Publication number: 20070175137
    Abstract: The floor plank is a laminate of two layers of flexible plastic sheet material laminated together in offset relationship to define an offset marginal portion for each of the layers. Each of the offset marginal portions have oppositely facing adhesive coated surfaces. A foam layer and/or a fiberglass sheet can also be included in the laminate structure of the floor plank. The floor plank can conform to surface contours of a floor base. The bottom layer of the floor plank, whether it is plastic sheet or foam, is conformable to surface irregularities of the floor base. A one piece releasable packaging device covers the oppositely facing adhesive coated surfaces of the offset marginal portions.
    Type: Application
    Filed: October 11, 2006
    Publication date: August 2, 2007
    Applicant: Tru Woods Limited.
    Inventors: Norman Stone, Song Zhengxing
  • Floor plank
    Patent number: 7155871
    Abstract: The floor plank is a laminate of two layers of flexible plastic sheet material laminated together in offset relationship to define an offset marginal portion for each of the layers. Each of the offset marginal portions have oppositely facing adhesive coated surfaces. A foam layer and/or a fiberglass sheet can also be included in the laminate structure of the floor plank. The floor plank can conform to surface contours of a floor base. The bottom layer of the floor plank, whether it is plastic sheet or foam, is conformable to surface irregularities of the floor base. A one piece releasable packaging device covers the oppositely facing adhesive coated surfaces of the offset marginal portions.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: January 2, 2007
    Assignee: Tru Woods Limited
    Inventors: Norman Stone, Song Zhengxing