Description  Claims  Drawing  Cited references 

US5972661B1   [0005] 
US5633165A   [0006] 
EP0477818A2   [0007] 
EP0025571B1   [0008] 
US20050239199A1   [0009] 
US20080068920A1   [0010] 
WO2007129023A1   [0011] 
US6395516B1   [0012] 

Biotechnol Bioeng.   [0054] 
Erratum in: Biotechnol Bioeng.   [0054]