(19)

(11)

EP 4 277 775 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 21927753.0 (22) Date of filing: 29.06.2021

(51) International Patent Classification (IPC):  B29C 33/00(2006.01) G01N 33/208(2019.01) G01N 33/00(2006.01) (52) Cooperative Patent Classification (CPC): B29C 33/56 (86) International application number: PCT/IB2021/055826 (87) International publication number: WO 2022/180440 (01.09.2022 Gazette 2022/35)

(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: 25.02.2021 CZ 20210085 (71) Applicant: Univerzita J. E. Purkyne v Usti nad Labem 40001 Usti nad Labem (CZ)	(72) Inventors: MICHNA, Stefan 40711 Decin (CZ) NOVOTNY, Jan 40011 Usti nad Labem (CZ) SVOBODOVA, Jaroslava 40001 Usti nad Labem (CZ) HORCICA, Petr 76301 Hostisova (CZ) (74) Representative: Kratochvil, Vaclav  Patent and Trademark Office P.O. Box 26 295 01 Mnichovo Hradiste 295 01 Mnichovo Hradiste (CZ)