(19)

(11)

EP 1 794 337 A2

(12)

(88) Date of publication A3: 18.05.2006 (43) Date of publication: 13.06.2007 Bulletin 2007/24 (21) Application number: 05815965.8 (22) Date of filing: 27.09.2005

(51) International Patent Classification (IPC):  C22C 38/12(2006.01) (86) International application number: PCT/US2005/034983 (87) International publication number: WO 2006/037093 (06.04.2006 Gazette 2006/14)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 27.09.2004 US 613780 P (71) Applicant: The Regents of the University of California Oakland, CA 94607-5200 (US)	(72) Inventors: VECCHIO, Kenneth, S. San Diego, CA 92131 (US) CHENEY, Justin San Diego, CA 92109 (US) (74) Representative: Lloyd, Patrick Alexander Desmond  Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)