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(11)

EP 4 097 266 A1

(12)

(43) Date of publication: 07.12.2022 Bulletin 2022/49 (21) Application number: 20916491.2 (22) Date of filing: 15.12.2020

(51) International Patent Classification (IPC):  C22C 21/00(2006.01) B22F 1/00(2022.01) (52) Cooperative Patent Classification (CPC): C22C 21/00; B33Y 80/00; C22C 1/0416; B22F 10/20; B22F 10/368; Y02P 10/25; B22F 1/09 (86) International application number: PCT/US2020/064970 (87) International publication number: WO 2021/154409 (05.08.2021 Gazette 2021/31)

(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: 31.01.2020 US 202062968238 P 14.12.2020 US 202017121601 (71) Applicant: HRL LABORATORIES, LLC Malibu, CA 90265 (US)	(72) Inventors: MARTIN, John Oxnard, California 93036 (US) LAPLANT, Darby Santa Monica, California 90402 (US) MILLER, Julie Los Angeles, California 90025 (US) (74) Representative: Coles, Andrea Birgit et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)