Patents by Inventor David George Unrau

David George Unrau 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).

  • Lyocell web product
    Patent number: 8318318
    Abstract: A web comprising a layer of crosslinked cellulosic fiber overlaid on and integral with at least one layer of regenerated cellulose fiber. The crosslinked cellulosic fiber can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 27, 2012
    Assignee: Weyerhaeuser NR Company
    Inventors: Mengkui Luo, David George Unrau
  • Method for making lyocell web product
    Patent number: 8191214
    Abstract: A method for making a web comprising a layer of crosslinked cellulosic fiber overlaid on and fastened to at least one layer of regenerated cellulose fiber. In one method the crosslinked cellulosic fiber is be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell or be made from several solvents.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 5, 2012
    Assignee: Weyerhaeuser NR Company
    Inventors: Mengkui Luo, David George Unrau
  • Lyocell Web Product
    Publication number: 20100167018
    Abstract: A web comprising a layer of crosslinked cellulosic fiber overlaid on and integral with at least one layer of regenerated cellulose fiber. The crosslinked cellulosic fiber can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Applicant: WEYERHAEUSER COMPANY
    Inventors: MENGKUI LUO, DAVID George UNRAU
  • Method for Making Lyocell Web Product
    Publication number: 20100162542
    Abstract: A method for making a web comprising a layer of crosslinked cellulosic fiber overlaid on and fastened to at least one layer of regenerated cellulose fiber. In one method the crosslinked cellulosic fiber is be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell or be made from several solvents.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Mengkui Luo, David George Unrau