US CA AU EP JP DE WO AT ES DK KR BR CN HK MX BE EG FI FR HU IE LU NL NZ PH PT TW ZA 6,607,768 2 1 1 1 6,207,211 1 1 1 2 1 1 1 1 2 6,106,877 1 1 1 5,939,121 2 1 1 1 1 1 1 1 1 1 1 2 1 1 5,721,005 2 1 1 1 1 1 1 1 1 1 1 2 1 1 5,322,703 1 1 1 1 1 1 1 1 5,292,005 2 5,257,574 1 1 3 2 1 5,185,171 1 1 2 1 2 1 1 1 1 1 1 1 1 4,988,590 1 1 1 1 1 4,985,271 2 1 1 4,591,508 1 4,540,591 1 4,428,535 1 4,322,447 1 1 1 1 1 1 1 JP 2007300937A 1 EP 0405648B1 1 1 2 1 2 1 1 1 1

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