(19)

(11)

EP 4 522 004 A1

(12)

(43) Date of publication: 19.03.2025 Bulletin 2025/12 (21) Application number: 23730220.3 (22) Date of filing: 09.05.2023

(51) International Patent Classification (IPC):  A47L 11/40(2006.01) A47L 11/293(2006.01) A47L 11/20(2006.01) (52) Cooperative Patent Classification (CPC): A47L 11/4019; A47L 11/293; A47L 11/4008; A47L 11/4075 (86) International application number: PCT/IT2023/050122 (87) International publication number: WO 2023/218493 (16.11.2023 Gazette 2023/46)

(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: KH MA MD TN (30) Priority: 10.05.2022 IT 202200009578 10.05.2022 IT 202200009584 10.05.2022 IT 202200009590 (71) Applicant: 4CleanPro S.r.l. 50013 Campi Bisenzio (FI) (IT)	(72) Inventor: PACINI, Lorenzo 50013 Campi Bisenzio (FI) (IT) (74) Representative: Manzella & Associati  Via dell'Indipendenza, 13 40121 Bologna 40121 Bologna (IT)