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(11)

EP 4 229 002 A1

(12)

(43) Date of publication: 23.08.2023 Bulletin 2023/34 (21) Application number: 21881244.4 (22) Date of filing: 15.10.2021

(51) International Patent Classification (IPC):  C01B 21/24(2006.01) C01B 21/30(2006.01) C01B 21/20(2006.01) C01B 21/32(2006.01) (52) Cooperative Patent Classification (CPC): H05H 1/466; H05H 2242/22; H05H 2245/10; C01B 21/28; C01B 21/30 (86) International application number: PCT/US2021/055318 (87) International publication number: WO 2022/082072 (21.04.2022 Gazette 2022/16)

(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: 16.10.2020 US 202063093040 P (71) Applicant: Third Pole, Inc. Waltham MA 02452 (US)	(72) Inventors: APOLLONIO, Benjamin J. Lunenburg, Massachusetts 01462 (US) HALL, Gregory W. Belmont, Massachusetts 02478 (US) (74) Representative: Samson & Partner Patentanwälte mbB  Widenmayerstraße 6 80538 München 80538 München (DE)