Patents by Inventor Hans Franssen Krefeld

Hans Franssen Krefeld 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).

  • ETHYLENE-PROPYLENE-MALEIC ACID ANHYDRIDE COPOLYMER AS IMPACT MODIFIER IN GLASS-FIBER REINFORCED, FLAME-RETARDANT POLYCARBONATES FOR THE EE SECTOR
    Publication number: 20140329948
    Abstract: The present invention relates to impact-modified glass fibre-reinforced polycarbonate compositions of high rigidity and improved thermal and rheological properties in combination with good flameproofing properties. The present invention furthermore relates to the use of the compositions according to the invention for the production of thin-walled housing parts or switch boxes in the EE sector.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 6, 2014
    Inventors: Michael Erkelenz, Hans Franssen Krefeld, Helmut Werner Heuer