(19)

(11)

EP 3 994 529 A1

(12)

(43) Date of publication: 11.05.2022 Bulletin 2022/19 (21) Application number: 20834451.5 (22) Date of filing: 02.07.2020

(51) International Patent Classification (IPC):  G03H 1/04(2006.01) G03H 1/08(2006.01) G02B 5/30(2006.01) G03H 1/06(2006.01) G03H 5/00(2006.01) (52) Cooperative Patent Classification (CPC): G03H 1/06; G02B 27/286; G03H 1/0443; G03H 2001/0447; G03H 2001/005; G03H 2001/0458; G03H 1/0465; G03H 2222/24; G03H 2222/31; G03H 2223/19; G03H 2223/20; G03H 2223/17; G03H 2223/22; G03H 2226/11; G03H 1/0866; G02B 3/0087; G02B 5/3083 (86) International application number: PCT/US2020/040683 (87) International publication number: WO 2021/003380 (07.01.2021 Gazette 2021/01)

(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: 03.07.2019 US 201962870364 P (71) Applicant: Celloptic, Inc. Rockville, MD 20850 (US)	(72) Inventors: BROOKER, Gary Rockville, MD 20850 (US) SIEGEL, Nisan Rockville, MD 20850 (US) (74) Representative: Cabinet Beau de Loménie  158, rue de l'Université 75340 Paris Cedex 07 75340 Paris Cedex 07 (FR)