(19)

(11)

EP 3 221 668 A1

(12)

(43) Date of publication: 27.09.2017 Bulletin 2017/39 (21) Application number: 15800921.7 (22) Date of filing: 20.11.2015

(51) International Patent Classification (IPC):  G01F 1/42(2006.01) G01F 1/74(2006.01) A24C 5/34(2006.01) G01F 1/36(2006.01) G01N 21/53(2006.01) A24F 47/00(2006.01) (86) International application number: PCT/GB2015/053541 (87) International publication number: WO 2016/079533 (26.05.2016 Gazette 2016/21)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 20.11.2014 GB 201420649 (71) Applicant: Nicoventures Holdings Limited London WC2R 3LA (GB)	(72) Inventors: OAKES, Nicholas Horley Surrey RH6 7DE (GB) SLAYFORD, Sandra Jane London WC2R 3LA (GB) VAS, Carl Alexander London WC2R 3LA (GB) LIPSCOMBE, Jeremy Lamberhurst Kent TN3 8AG (GB) (74) Representative: D Young & Co LLP  120 Holborn London EC1N 2DY London EC1N 2DY (GB)