(19)

(11)

EP 4 405 538 A1

(12)

(43) Date of publication: 31.07.2024 Bulletin 2024/31 (21) Application number: 22773552.9 (22) Date of filing: 19.09.2022

(51) International Patent Classification (IPC):  E04F 15/08(2006.01) E04F 13/14(2006.01) E04F 13/08(2006.01) (52) Cooperative Patent Classification (CPC): E04F 15/08; E04F 2203/02; E04F 13/0871; E04F 13/142 (86) International application number: PCT/IB2022/058813 (87) International publication number: WO 2023/047260 (30.03.2023 Gazette 2023/13)

(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: 22.09.2021 IT 202100024287 (71) Applicant: Marazzi Group Srl 41049 Sassuolo (IT)	(72) Inventor: SAMPAOLO, Roberto 41049 Sassuolo (IT) (74) Representative: Unilin Technologies  Patent Department Ooigemstraat 3 8710 Wielsbeke 8710 Wielsbeke (BE)