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EP 4 330 197 A1

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(43) Date of publication: 06.03.2024 Bulletin 2024/10 (21) Application number: 21734953.9 (22) Date of filing: 28.04.2021

(51) International Patent Classification (IPC):  C02F 9/00(2023.01) A61C 1/00(2006.01) A61L 2/20(2006.01) C02F 1/78(2023.01) A61L 2/18(2006.01) A61L 2/24(2006.01) (52) Cooperative Patent Classification (CPC): C02F 2307/14; C02F 2303/04; C02F 2209/42; C02F 2209/03; C02F 1/78; C02F 1/008; A61L 2/202; A61L 2/24; A61C 1/0076; C02F 9/20 (86) International application number: PCT/IT2021/000022 (87) International publication number: WO 2022/229989 (03.11.2022 Gazette 2022/44)

(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 (71) Applicant: DTF Technology S.r.l. 20122 Milano (MI) (IT)	(72) Inventor: FOLLINI, Alessandro 20122 Milano (MI) (IT) (74) Representative: Zermani Biondi Orsi, Umberto  Bugnion S.p.A. Viale Lancetti, 17 20158 Milano 20158 Milano (IT)