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EP 4 367 692 A1

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(43) Date of publication: 15.05.2024 Bulletin 2024/20 (21) Application number: 21758843.3 (22) Date of filing: 16.07.2021

(51) International Patent Classification (IPC):  H01F 1/24(2006.01) H01F 1/26(2006.01) H10N 97/00(2023.01) H01F 41/02(2006.01) H01F 17/00(2006.01) (52) Cooperative Patent Classification (CPC): H01F 1/24; H01F 41/0246; H01F 1/26; H01F 17/0033; H01F 2017/0086; H01L 28/10 (86) International application number: PCT/US2021/041967 (87) International publication number: WO 2023/287429 (19.01.2023 Gazette 2023/03)

(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 (71) Applicant: Ferric Inc. New York, NY 10001 (US)	(72) Inventors: STURCKEN, Noah New York, NY 10027 (US) LEKAS, Michael Brooklyn, NY 11222 (US) DAVIES, Ryan New York, NY 10025 (US) SHISHKOV, Denis Brooklyn, NY 11235 (US) CAVALLARO, Matthew New York, NY 10075 (US) (74) Representative: Prüfer & Partner mbB Patentanwälte · Rechtsanwälte  Sohnckestraße 12 81479 München 81479 München (DE)