(19)

(11)

EP 4 486 708 A1

(12)

(43) Date of publication: 08.01.2025 Bulletin 2025/02 (21) Application number: 22711446.9 (22) Date of filing: 02.03.2022

(51) International Patent Classification (IPC):  C03C 17/34(2006.01) (52) Cooperative Patent Classification (CPC): C03C 17/3435; C03C 2217/734 (86) International application number: PCT/CH2022/050006 (87) International publication number: WO 2023/164785 (07.09.2023 Gazette 2023/36)

(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: HODY LE CAER, Virginie 1030 Bussigny (CH)	(72) Inventor: HODY LE CAER, Virginie 1030 Bussigny (CH) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Stralauer Platz 34 10243 Berlin 10243 Berlin (DE)