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(11)

EP 1 859 290 A1

(12)

(43) Date of publication: 28.11.2007 Bulletin 2007/48 (21) Application number: 05714645.8 (22) Date of filing: 17.03.2005

(51) International Patent Classification (IPC):  G01R 31/36(2006.01) G01R 19/25(2006.01) G01R 19/10(2006.01) H01M 8/04(2006.01) G01R 19/22(2006.01) (86) International application number: PCT/CA2005/000407 (87) International publication number: WO 2006/096956 (21.09.2006 Gazette 2006/38)

(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 MC NL PL PT RO SE SI SK TR (71) Applicant: Hydrogenics Corporation Mississauga, Ontario L5R 1B8 (CA)	(72) Inventors: Aboutallah, Rami Toronto, Ontario M9P 3R1 (CA) MASSE, Stephane Toronto, Ontario M6P 2T6 (CA) PEMBERTON, Daren Mississauga, Ontario L5G 4C5 (CA) (74) Representative: Carter, Stephen John et al Mewburn Ellis LLP York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)