(19)

(11)

EP 2 691 914 A1

(12)

(43) Date of publication: 05.02.2014 Bulletin 2014/06 (21) Application number: 12718733.4 (22) Date of filing: 30.03.2012

(51) International Patent Classification (IPC):  G06K 7/12(2006.01) G06K 19/06(2006.01) (86) International application number: PCT/GB2012/050731 (87) International publication number: WO 2012/131398 (04.10.2012 Gazette 2012/40)

(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 RS SE SI SK SM TR (30) Priority: 30.03.2011 GB 201105379 (71) Applicant: Smartwater Technology Limited Liverpool, Merseyside L23YL (GB)	(72) Inventor: CLEARY, Michael Liverpool, Merseyside L2 3YL (GB) (74) Representative: Murphy, Colm Damien  Ipulse 126-130 Regent Street London W1B 5SE London W1B 5SE (GB)