(19)

(11)

EP 2 828 447 A2

(12)

(43) Date of publication: 28.01.2015 Bulletin 2015/05 (21) Application number: 13733840.6 (22) Date of filing: 03.01.2013

(51) International Patent Classification (IPC):  E04F 15/22(2006.01) B32B 3/10(2006.01) E04B 5/43(2006.01) (86) International application number: PCT/US2013/020148 (87) International publication number: WO 2013/103721 (11.07.2013 Gazette 2013/28)

(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: 03.01.2012 US 201213342605 (71) Applicant: University of Notre Dame du Lac Notre Dame, IN 46556-5602 (US)	(72) Inventor: OVAERT, Timothy, C. Notre Dame, Indiana 46556 (US) (74) Representative: Samson & Partner  Widenmayerstraße 5 80538 München 80538 München (DE)