(19)

(11)

EP 4 211 510 A1

(12)

(43) Date of publication: 19.07.2023 Bulletin 2023/29 (21) Application number: 20953493.2 (22) Date of filing: 30.09.2020

(51) International Patent Classification (IPC):  G02C 7/02(2006.01) G02B 1/10(2015.01) (52) Cooperative Patent Classification (CPC): G02C 7/10; G02C 2202/16; G02B 5/223; G02B 1/041   C-Sets: G02B 1/041, C08K 5/0041; (86) International application number: PCT/US2020/053653 (87) International publication number: WO 2022/055520 (17.03.2022 Gazette 2022/11)

(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: 12.09.2020 US 202017019243 (71) Applicant: Hsu, Roger Wen Yi Rancho Cucamonga, CA 91737 (US)	(72) Inventor: Hsu, Roger Wen Yi Rancho Cucamonga, CA 91737 (US) (74) Representative: Taylor, Gail et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)