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EP 3 935 563 A1

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(43) Date of publication: 12.01.2022 Bulletin 2022/02 (21) Application number: 20769474.6 (22) Date of filing: 05.03.2020

(51) International Patent Classification (IPC):  G06K 9/03(2006.01) G06K 9/74(2006.01) G01N 21/35(2014.01) H04L 9/08(2006.01) H01L 27/30(2006.01) G06K 9/20(2006.01) G01N 21/33(2006.01) G06F 21/32(2013.01) H01L 27/14(2006.01) (52) Cooperative Patent Classification (CPC): G06K 9/209; G06F 21/32; G06K 9/4642; G06K 2009/4666; G06K 9/00288; G06K 9/00281; G06K 9/00597 (86) International application number: PCT/US2020/021256 (87) International publication number: WO 2020/185525 (17.09.2020 Gazette 2020/38)

(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: 08.03.2019 US 201916297366 (71) Applicant: Stone Lock Global, Inc. Overland Park, Kansas 66213 (US)	(72) Inventors: TRANI, James Albuquerque, New Mexico 87120 (US) DUNLAP, David Douglas Leawood, Kansas 66224 (US) (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)