(19)

(11)

EP 4 165 757 A1

(12)

(43) Date of publication: 19.04.2023 Bulletin 2023/16 (21) Application number: 21826126.1 (22) Date of filing: 15.06.2021

(51) International Patent Classification (IPC):  H02K 7/09(2006.01) F16C 32/04(2006.01) H02K 7/02(2006.01) F03G 3/08(2006.01) (52) Cooperative Patent Classification (CPC): F03G 3/08; F16C 2361/55; F16C 2202/20; F16C 37/005; F16C 2202/34; F16C 32/0412; Y02E 60/16 (86) International application number: PCT/US2021/037517 (87) International publication number: WO 2021/257629 (23.12.2021 Gazette 2021/51)

(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: 15.06.2020 US 202063039454 P (71) Applicant: Revterra Corporation Houston, TX 77060 (US)	(72) Inventor: JAWDAT, BenMaan I. Houston, Texas 77060 (US) (74) Representative: Bryn-Jacobsen, Caelia et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)