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(11)

EP 4 136 468 A1

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(43) Date of publication: 22.02.2023 Bulletin 2023/08 (21) Application number: 21724035.7 (22) Date of filing: 13.04.2021

(51) International Patent Classification (IPC):  G01R 33/00(2006.01) B81B 3/00(2006.01) G01R 33/028(2006.01) (52) Cooperative Patent Classification (CPC): G01R 33/0011; G01R 33/0286; B81B 3/0091; B81B 2201/0292 (86) International application number: PCT/IB2021/053032 (87) International publication number: WO 2021/209891 (21.10.2021 Gazette 2021/42)

(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: 15.04.2020 IT 202000007969 (71) Applicant: Consiglio Nazionale Delle Ricerche 00185 Roma (IT)	(72) Inventors: MASPERO, Federico 20127 Milano (IT) BERTACCO, Riccardo 21040 Morazzone (Varese) (IT) PELLEGRINO, Luca 16148 Genova (IT) MANCA, Nicola 17031 Albenga ( Savona) (IT) MARRE', Daniele 16145 Genova (IT) CUCCURULLO, Simone 80059 Torre Del Greco (Napoli) (IT) (74) Representative: Vanzini, Christian et al Jacobacci & Partners S.p.A. Corso Emilia 8 10152 Torino 10152 Torino (IT)