(19)

(11)

EP 3 606 632 A1

(12)

(43) Date of publication: 12.02.2020 Bulletin 2020/07 (21) Application number: 18744141.5 (22) Date of filing: 26.01.2018

(51) International Patent Classification (IPC):  B01D 3/16(2006.01) B01D 3/22(2006.01) B01D 3/20(2006.01) B01D 3/32(2006.01) (86) International application number: PCT/US2018/015483 (87) International publication number: WO 2018/140751 (02.08.2018 Gazette 2018/31)

(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 TN (30) Priority: 27.01.2017 US 201762451400 P 12.04.2017 US 201762484688 P (71) Applicant: GTC Technology US, LLC Houston, TX 77079 (US)	(72) Inventors: BURTON, Larry, W. Waxahachie TX 75165 (US) BINKLEY, Michael, J. Glenn Hieghts TX 75154 (US) FLEMING, Phillip, Bradley Keller TX 76248 (US) (74) Representative: Stump, Beat  Stump & Partner AG Zimmergasse 16 8008 Zürich 8008 Zürich (CH)