(19)

(11)

EP 4 042 732 A2

(12)

(88) Date of publication A3: 14.05.2021 (43) Date of publication: 17.08.2022 Bulletin 2022/33 (21) Application number: 20870670.5 (22) Date of filing: 02.10.2020

(51) International Patent Classification (IPC):  H04W 4/90(2018.01) H04W 4/02(2018.01) H04W 4/029(2018.01) H04W 4/38(2018.01) H04W 4/024(2018.01) (52) Cooperative Patent Classification (CPC): H04W 4/90; H04L 63/302 (86) International application number: PCT/US2020/053984 (87) International publication number: WO 2021/067731 (08.04.2021 Gazette 2021/14)

(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: 02.10.2019 US 201916591197 07.08.2020 US 202016988521 (71) Applicant: Coolfire Solutions, Inc. St. Louis MO 63101 (US)	(72) Inventors: DAMES, John J. St. Louis, MO 63104 (US) BIVIANO, Michael S. St. Louis, MO 63143 (US) (74) Representative: Greaves Brewster LLP  Copa House Station Road Cheddar, Somerset BS27 3AH Cheddar, Somerset BS27 3AH (GB)