◊ Steam Stripping of Flake
Granted: October 1998
◊ Small Particle Size Flake
Granted: May 1999
◊ Post-Reactor Cooling of PET
Granted: December 2002
◊ Comminuting Small Particle Size
Granted: April 2004
◊ Detection of Bottle Defects
Granted: January, 2004
◊ rPET Value-Added Compounds
Granted: January, 2005
