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EP 4 798 372 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24800903.7 (22) Date of filing: 23.10.2024

(51) International Patent Classification (IPC):  B01L 1/02(2006.01) B01L 9/00(2006.01) A47B 37/00(2006.01) B01L 9/02(2006.01) B08B 15/02(2006.01) B01L 9/06(2006.01) (52) Cooperative Patent Classification (CPC): B01L 1/02; B01L 2200/025; B01L 2200/028; B01L 2400/08; B08B 15/023; B01L 9/06; B01L 9/00 (86) International application number: PCT/GB2024/052705 (87) International publication number: WO 2025/088315 (01.05.2025 Gazette 2025/18)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 23.10.2023 GB 202316143 (71) Applicants: Westerdale, Howard Cotterells, Hemel Hempstead, Hertfordshire HP1 1AX (GB) Evans, Andrew Cotterells, Hemel Hempstead, Hertfordshire HP1 1AX (GB)

(72) Inventors: Westerdale, Howard Cotterells, Hemel Hempstead, Hertfordshire HP1 1AX (GB) Evans, Andrew Cotterells, Hemel Hempstead, Hertfordshire HP1 1AX (GB) (74) Representative: ip21 Ltd  Central Formalities Department Suite 2 The Old Dairy Elm Farm Business Park Wymondham Norwich, Norfolk NR18 0SW Norwich, Norfolk NR18 0SW (GB)