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(11)

EP 4 241 295 A2

(12)

(88) Date of publication A3: 07.07.2022 (43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 21801121.1 (22) Date of filing: 27.10.2021

(51) International Patent Classification (IPC):  H01J 23/12(2006.01) H01J 23/18(2006.01) H01J 25/36(2006.01) H01J 23/16(2006.01) H01J 23/27(2006.01) (52) Cooperative Patent Classification (CPC): H01J 23/27; H01J 23/12; H01J 25/36; H01J 23/165; H01J 23/18 (86) International application number: PCT/EP2021/079749 (87) International publication number: WO 2022/096330 (12.05.2022 Gazette 2022/19)

(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: 03.11.2020 EP 20205436 (71) Applicant: Johann-Wolfgang-Goethe-Universität Frankfurt am Main 60323 Frankfurt am Main (DE)	(72) Inventors: ULISSE, Giacomo 60385 Frankfurt am Main (DE) KROZER, Viktor 64285 Darmstadt (DE) (74) Representative: WSL Patentanwälte Partnerschaft mbB  Kaiser-Friedrich-Ring 98 65185 Wiesbaden 65185 Wiesbaden (DE)