Patents by Inventor Karen Liliane Jean Van Der Sande

Karen Liliane Jean Van Der Sande 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).

  • Microvoid polyurethane materials
    Patent number: 5652278
    Abstract: Microvoid polyurethane materials having densities below 300 kg/m.sup.3 and void sizes below 5 micron which are suitable for use as insulating filler in evacuated insulation panels.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: July 29, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventors: Martin Barker, Alain Luc Raymonde Marie Paul Herssens, Norman Washington Keane, Guy Leon Jena Ghislain Biesmans, Karen Liliane Jean Van Der Sande