Description     Claims     Drawing  

US2002077711A1   [0008] 
US2007005266A1   [0008] 
US2011144776A1   [0008] 
WO2005109122A1   [0008] 
US2008255681A1   [0008] 
EP2623679A1   [0008] 
US6774786B1   [0008]