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EP 4 739 628 A2

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(88) Date of publication A3: 13.02.2025 (43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24786141.2 (22) Date of filing: 06.06.2024

(51) International Patent Classification (IPC):  C01B 39/02(2006.01) B33Y 70/00(2020.01) C01B 39/14(2006.01) B33Y 70/10(2020.01) (52) Cooperative Patent Classification (CPC): C01B 39/14; C01B 39/026; B33Y 70/10; B33Y 80/00 (86) International application number: PCT/IB2024/055543 (87) International publication number: WO 2025/008687 (09.01.2025 Gazette 2025/02)

(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: GE KH MA MD TN (30) Priority: 04.07.2023 IT 202300013929 (71) Applicants: Universita' Degli Studi Di Padova 35122 Padova (IT) Università degli Studi di Torino 10124 Torino (IT)

(72) Inventors: FRANCHIN, Giorgia 35010 Vigodarzere PD (IT) D'AGOSTINI, Marco Lorenzo 32032 Feltre BL (IT) COLOMBO, Paolo 35127 Padova PD (IT) CONTE, Alberto 10064 Pinerolo TO (IT) CROCELLÀ, Valentina 10090 Sangano TO (IT) CAVALLO, Margherita 10128 Torino TO (IT) PORCARO, Natale Gabriele 95035 Maletto CT (IT) BONINO, Francesca Carla 10128 Torino TO (IT) (74) Representative: Di Giovine, Paolo et al Società Italiana Brevetti S.p.A. Stradone San Fermo, 21-sc. B 37121 Verona 37121 Verona (IT)