(19)

(11)

EP 3 516 365 A1

(12)

(43) Date of publication: 31.07.2019 Bulletin 2019/31 (21) Application number: 17851760.3 (22) Date of filing: 19.09.2017

(51) International Patent Classification (IPC):  G01N 1/06(2006.01) G02B 21/34(2006.01) G01N 1/38(2006.01) (86) International application number: PCT/US2017/052188 (87) International publication number: WO 2018/053473 (22.03.2018 Gazette 2018/12)

(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: MA MD (30) Priority: 19.09.2016 US 201662396299 P 23.06.2017 US 201715632226 (71) Applicant: Alessi Technologies, LLC Ann Arbor, MI 48103 (US)	(72) Inventors: RICH, Collin Ann Arbor, MI 48103 (US) ORFIELD, Nolan Ann Arbor, MI 48103 (US) ALESSI, Vincent Ann Arbor, MI 48103 (US) (74) Representative: Higgs, Jonathan  Urquhart-Dykes & Lord LLP Altius House 1 North Fourth Street Milton Keynes, MK9 1NE Milton Keynes, MK9 1NE (GB)