JK

Jan Keulen

GE: 10 patents #3,350 of 36,430Top 10%
SB Sabic Innovative Plastics B.V.: 2 patents #286 of 817Top 40%
Overall (All Time): #421,437 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE44826 Screw extruder mechanism, in particular twin-screw extruder mechanism, for the processing of strongly outgassing materials Erwin Haring, Horst Eggerl 2014-04-08
7462656 Electrically conductive compositions and method of manufacture thereof Christiaan Henricus Johannes Koevoets 2008-12-09
7122619 Method of separating a polymer from a solvent Norberto Silvi, Mark Howard Giammattei, David Woodruff, Paul R. Wilson, Paul William Buckley +1 more 2006-10-17
6949622 Method of separating a polymer from a solvent Norberto Silvi, Mark Howard Giammattei, David Woodruff, Paul R. Wilson, Paul William Buckley +1 more 2005-09-27
6743846 Preparation of flame retardant expandable poly(arylene ether)/polystyrene compositions Adrie Landa 2004-06-01
6583205 Flame retardant expandable poly(arylene ether)/polystyrene compositions and preparation thereof Adrie Landa 2003-06-24
6489404 Reduction of carbonized particles in a poly(arylene ether)-polyamide composition Piet J Bolluijt, Jasper R. Bouma, Herve Cartier, Ulrich Hofmann, Christiaan Henricus Johannes Koevoets +4 more 2002-12-03
6365677 Reduction of carbonized particles Piet J Bolluijt, Jasper R. Bouma, Herve Cartier, Ulrich Hofmann, Christian Henricus Koevoets +4 more 2002-04-02
6221283 Conductive compositions with compositionally controlled bulk resistivity Raja N. Dharmarajan, Robert Hossan, Biswaroop Majumdar, Alan J. Oshinski, Christiaan Henricus Johannes Koevoets +3 more 2001-04-24
6079866 Mixing apparatus for mixing thermosetting and thermoplastic resin blends prior to molding Joseph M. H. Janssen, Martin A. Van Nuus 2000-06-27
5981656 Compositions of poly(phenylene ether) and polyamide resins, which exhibit improved beard growth reduction Neil Andrew McGaughan, Gim F. Lee, Jr., Ronald James Wroczynski, John B. Yates, III, Christiaan Henricus Johannes Koevoets +1 more 1999-11-09
5760132 Compositions of poly(phenylene ether) and polyamide resins, which exhibit improved beard growth reduction Neil Andrew McGaughan, Gim F. Lee, Jr., Ronald James Wroczyski, John B. Yates, III, Christiaan Henricus Johannes Koevoets +1 more 1998-06-02