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EP 3 161 470 A1

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(43) Date of publication: 03.05.2017 Bulletin 2017/18 (21) Application number: 15739101.2 (22) Date of filing: 26.06.2015

(51) International Patent Classification (IPC):  G01N 27/30(2006.01) G01N 33/00(2006.01) G01N 27/404(2006.01) (86) International application number: PCT/US2015/037893 (87) International publication number: WO 2015/200755 (30.12.2015 Gazette 2015/52)

(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 (30) Priority: 27.06.2014 US 201414317222 (71) Applicant: Spec Sensors LLC Newark, California 94560 (US)	(72) Inventors: STETTER, Joseph R. Hayward, California 94542 (US) PATEL, Vinay Fremont, California 94555 (US) FINDLAY, Melvin W. Buchanan, Georgia 30113 (US) CARTER, Michael T. Denver, Colorado 80221 (US) (74) Representative: Heim, Florian Andreas et al Weber & Heim Patentanwälte Partnerschaftsgesellschaft mbB Irmgardstraße 3 81479 München 81479 München (DE)