(19)

(11)

EP 3 149 893 A1

(12)

(43) Date of publication: 05.04.2017 Bulletin 2017/14 (21) Application number: 15798924.5 (22) Date of filing: 08.05.2015

(51) International Patent Classification (IPC):  H04L 12/24(2006.01) H04L 29/06(2006.01) H04L 12/58(2006.01) (86) International application number: PCT/US2015/029809 (87) International publication number: WO 2015/183517 (03.12.2015 Gazette 2015/48)

(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: 29.05.2014 US 201414290598 (71) Applicant: Causam Energy, Inc. Raleigh, NC 27615 (US)	(72) Inventor: FORBES, Joseph W. Jr. Raleigh, NC 27615 (US) (74) Representative: Keane, David Colman  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)