Patents by Inventor Lars Järnström

Lars Järnström 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).

  • Barrier material and method for making the same
    Patent number: 8734959
    Abstract: The present invention relates to a biopolymer based barrier coating composition wherein said biopolymer based barrier coating composition comprises a plasticizer, a nano-sized clay and a biopolymer comprising a native starch and/or a de-graded starch and/or a chemically modified starch. The present invention also relates to a method for preparing the biopolymer based barrier coating composition as well as to a method for coating a cellulose based substrate with the biopolymer based barrier coating composition. Finally, the present invention relates to a cellulose based substrate coated with said biopolymer based barrier coating composition.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 27, 2014
    Assignees: Sheffield Hallam University
    Inventors: Caisa Johansson, Lars Järnström, Christopher Breen
  • IONIC PAPER ELECTRONIC PLATFORM (IPEP)
    Publication number: 20140110274
    Abstract: A method of producing porous ionic conducting material, comprising the step of positioning an ionic substance into cellulosic material to form a continuous web or at least one individual sheet of porous ionic cellulosic based material, comprising the steps of first producing a web or sheet shaped cellulosic based substrate and thereafter applying liquid comprising room temperature ionic liquids. The porous ionic conducting material is used in flexible electronic device, by using the material as a substrate and applying a conducting material. A sensor assembly for sensing a property of an object, comprising at least one sensor wherein said sensor assembly comprises a flexible web or sheet shaped material. An authentication device for verifying the authenticity of an object. The device comprising at least one flexible electronic device.
    Type: Application
    Filed: May 14, 2012
    Publication date: April 24, 2014
    Inventors: Magnus Lestelius, Elson Montibon, Lars Järnström
  • BARRIER MATERIAL AND METHOD FOR MAKING THE SAME
    Publication number: 20110293957
    Abstract: The present invention relates to a biopolymer based barrier coating composition wherein said biopolymer based barrier coating composition comprises a plasticizer, a nano-sized clay and a biopolymer comprising a native starch and/or a de-graded starch and/or a chemically modified starch. The present invention also relates to a method for preparing the biopolymer based barrier coating composition as well as to a method for coating a cellulose based substrate with the biopolymer based barrier coating composition. Finally, the present invention relates to a cellulose based substrate coated with said biopolymer based barrier coating composition.
    Type: Application
    Filed: December 21, 2009
    Publication date: December 1, 2011
    Applicants: SHEFFIELD HALLAM UNIVERSITY
    Inventors: Caisa Johansson, Lars Järnström, Christopher Breen