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(11)

EP 4 048 454 A1

(12)

(43) Date of publication: 31.08.2022 Bulletin 2022/35 (21) Application number: 20812399.2 (22) Date of filing: 21.10.2020

(51) International Patent Classification (IPC):  B09B 3/00(2022.01) F23G 5/46(2006.01) B09B 5/00(2006.01) F23G 7/12(2006.01) (52) Cooperative Patent Classification (CPC): B09B 5/00; F23G 7/12; F23G 2206/203; F23G 2209/28; F23G 5/46; F23G 2204/10; Y02E 20/12; B09B 3/45; B09B 3/40 (86) International application number: PCT/GB2020/052640 (87) International publication number: WO 2021/079105 (29.04.2021 Gazette 2021/17)

(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: 22.10.2019 GB 201915286 (71) Applicant: Rockfuel Innovations Limited Capel St Mary, Suffolk IP9 2UP (GB)	(72) Inventors: ATAMAN, Caglar 79100 Freiburg (DE) BANERJEE, Kaustubh 79111 Freiburg (DE) RAJAEIPOUR, Pouya 79106 Freiburg (DE) ZAPPE, Hans 8044 Zürich (CH) (74) Representative: Sandersons  D2 Knowledge Gateway Nesfield Road Colchester, Essex CO4 3ZL Colchester, Essex CO4 3ZL (GB)