(19)

(11)

EP 4 278 294 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 22703543.3 (22) Date of filing: 12.01.2022

(51) International Patent Classification (IPC):  G06K 7/10(2006.01) G03F 7/00(2006.01) G09F 3/00(2006.01) G03F 1/00(2012.01) G06K 7/14(2006.01) (52) Cooperative Patent Classification (CPC): G06K 19/06159; G06K 7/1426; G06K 7/1417; G06K 7/10881; G06K 7/10831; G06K 7/10742; G06K 7/10732; G03F 7/0012 (86) International application number: PCT/EP2022/050553 (87) International publication number: WO 2022/152755 (21.07.2022 Gazette 2022/29)

(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: 12.01.2021 DE 102021000095 (71) Applicant: The Grey Elephant OHG 86971 Peiting (DE)	(72) Inventor: KAUFMANN, Martin 99084 Erfurt (DE) (74) Representative: noventive Patentanwaltsgesellschaft mbH  Riesstraße 16 80992 München 80992 München (DE)