(19)

(11)

EP 2 473 040 A1

(12)

(43) Date of publication: 11.07.2012 Bulletin 2012/28 (21) Application number: 10800596.8 (22) Date of filing: 16.07.2010

(51) International Patent Classification (IPC):  A01N 43/04(2006.01) (86) International application number: PCT/US2010/042240 (87) International publication number: WO 2011/009032 (20.01.2011 Gazette 2011/03)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 16.07.2009 US 226043 P 14.08.2009 US 541713 (71) Applicant: Pacific Arrow Limited Causeway Bay, Hong Kong (CN)	(72) Inventors: CHAN, Pui-Kwong Sugarland Texas 77479 (US) MAK, May Sung Hong Kong (CN) (74) Representative: Lecca, Patricia S. et al Cabinet Lecca 21 rue de Fécamp 75012 Paris 75012 Paris (FR)