(19)

(11)

EP 1 996 737 A2

(12)

(88) Date of publication A3: 27.03.2008 (43) Date of publication: 03.12.2008 Bulletin 2008/49 (21) Application number: 07716799.7 (22) Date of filing: 18.01.2007

(51) International Patent Classification (IPC):  C21D 1/613(2006.01) (86) International application number: PCT/US2007/001421 (87) International publication number: WO 2007/092139 (16.08.2007 Gazette 2007/33)

(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: 06.02.2006 US 765526 P (71) Applicant: HyRadix Inc. Des Plaines, IL 60018 (US)	(72) Inventors: DOSHI, Kishore, J. Fernandina Beach, FL 32034 (US) HARNESS, John, R. Elgin, IL 60120 (US) (74) Representative: Hayes, Adrian Chetwynd  Boult Wade Tennant, Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)