(19)

(11)

EP 4 226 085 A2

(12)

(88) Date of publication A3: 30.06.2022 (43) Date of publication: 16.08.2023 Bulletin 2023/33 (21) Application number: 21895313.1 (22) Date of filing: 12.10.2021

(51) International Patent Classification (IPC):  F23G 5/027(2006.01) (52) Cooperative Patent Classification (CPC): C10B 19/00; C10B 53/00; C10B 53/02; C10B 53/07; C10G 1/002; C10B 7/10 (86) International application number: PCT/US2021/054597 (87) International publication number: WO 2022/108687 (27.05.2022 Gazette 2022/21)

(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: 12.10.2020 US 202063090460 P (71) Applicant: The Regents of the University of Colorado, a body corporate Denver, CO 80203 (US)	(72) Inventors: POPOVIC, Zorana Boulder, Colorado 80303 (US) ROBINSON, Megan C. Boulder, Colorado 80303 (US) (74) Representative: Ernest Gutmann - Yves Plasseraud S.A.S.  c/o Plasseraud IP 66, rue de la Chaussée d'Antin 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)