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(11)

EP 3 860 948 A1

(12)

(43) Date of publication: 11.08.2021 Bulletin 2021/32 (21) Application number: 18936229.6 (22) Date of filing: 04.10.2018

(51) International Patent Classification (IPC):  C01B 32/168(2017.01) C01B 32/178(2017.01) C01B 32/174(2017.01) (86) International application number: PCT/US2018/054459 (87) International publication number: WO 2020/072066 (09.04.2020 Gazette 2020/15)

(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: Wootz, LLC Cleveland, Texas 77327 (US)	(72) Inventors: BENGIO, Elie Amram Houston, Texas 77008 (US) MARKS, Alexander Joseph Houston, Texas 77006 (US) (74) Representative: Zacco Denmark A/S  Arne Jacobsens Allé 15 2300 Copenhagen S 2300 Copenhagen S (DK)