(19)

(11)

EP 4 243 946 A1

(12)

(43) Date of publication: 20.09.2023 Bulletin 2023/38 (21) Application number: 21810321.6 (22) Date of filing: 09.11.2021

(51) International Patent Classification (IPC):  A63B 69/20(2006.01) A63B 71/06(2006.01) A63B 24/00(2006.01) (52) Cooperative Patent Classification (CPC): A63B 2214/00; A63B 2220/40; A63B 2220/53; A63B 2209/00; A63B 2225/50; A63B 2225/20; A63B 2071/065; A63B 2220/13; A63B 2220/16; A63B 2220/62; A63B 2220/64; A63B 2225/107; A63B 2225/02; A63B 24/0006; A63B 2024/0043; A63B 2024/0056; A63B 2024/0068; A63B 24/0062; A63B 69/0053; A63B 2071/0625; A63B 71/0622; A63B 2230/06; A63B 24/0084; A63B 24/0075; A63B 2071/063; A63B 2071/0675; A63B 69/305 (86) International application number: PCT/EP2021/081125 (87) International publication number: WO 2022/101209 (19.05.2022 Gazette 2022/20)

(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: 10.11.2020 GB 202017718 (71) Applicant: Stichting VU 1081 HV Amsterdam (NL)	(72) Inventors: ORTH, Dominic 1081 BT Amsterdam (NL) CLAIRBOIS, Bert 1081 BT Amsterdam (NL) OTTEN, Siro 1081 BT Amsterdam (NL) AGRICOLA, Hans 1081 BT Amsterdam (NL) (74) Representative: Potter Clarkson  Chapel Quarter Mount Street Nottingham NG1 6HQ Nottingham NG1 6HQ (GB)