(19)

(11)

EP 4 162 460 A1

(12)

(43) Date of publication: 12.04.2023 Bulletin 2023/15 (21) Application number: 21736251.6 (22) Date of filing: 09.06.2021

(51) International Patent Classification (IPC):  G08B 25/12(2006.01) (52) Cooperative Patent Classification (CPC): G08B 25/12 (86) International application number: PCT/EP2021/065524 (87) International publication number: WO 2021/250125 (16.12.2021 Gazette 2021/50)

(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: 09.06.2020 GB 202008747 (71) Applicant: Alba Innovations Limited Shannon Free Zone Clare (IE)	(72) Inventor: FITZGIBBON, Patrick Shannon Free Zone County Clare (IE) (74) Representative: FRKelly  27 Clyde Road Dublin D04 F838 Dublin D04 F838 (IE)