(19)

(11)

EP 2 861 352 A1

(12)

(43) Date of publication: 22.04.2015 Bulletin 2015/17 (21) Application number: 13804117.3 (22) Date of filing: 11.06.2013

(51) International Patent Classification (IPC):  B03B 5/28(2006.01) B03D 1/00(2006.01) (86) International application number: PCT/US2013/045199 (87) International publication number: WO 2013/188419 (19.12.2013 Gazette 2013/51)

(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 (30) Priority: 11.06.2012 US 201261658153 P 17.01.2013 US 201313576067 (71) Applicant: Virginia Tech Intellectual Properties, Inc. Blacksburg, VA 24060 (US)	(72) Inventor: YOON, Roe-Hoan Blacksburg, VA 24060 (US) (74) Representative: Gillard, Matthew Paul et al Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)