(19)

(11)

EP 3 807 459 A1

(12)

(43) Date of publication: 21.04.2021 Bulletin 2021/16 (21) Application number: 19731776.1 (22) Date of filing: 07.06.2019

(51) International Patent Classification (IPC):  D06P 5/15(2006.01) D06M 16/00(2006.01) D06L 1/14(2006.01) D06B 11/00(2006.01) D06M 23/08(2006.01) D06L 4/40(2017.01) (86) International application number: PCT/GB2019/051595 (87) International publication number: WO 2019/239110 (19.12.2019 Gazette 2019/51)

(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: KH MA MD TN (30) Priority: 12.06.2018 GB 201809610 (71) Applicant: Xeros Limited Whittle Way, Catcliffe Rotherham South Yorkshire S60 5BL (GB)	(72) Inventors: TZELILI, Marieta Rotherham, South Yorkshire S60 5BL (GB) YU, Richard Gar Chang Rotherham, South Yorkshire S60 5BL (GB) LAVERY, Aidan Rotherham, South Yorkshire S60 5BL (GB) (74) Representative: Secerna LLP  The Old Fire Station 18 Clifford Street York YO1 9RD York YO1 9RD (GB)