Inventor

STECK ALFRED E

CA12 patents

Patents

12 patents

US5464700ANov 7, 1995

Gasketed membrane electrode assembly for electrochemical fuel cells

BALLARD POWER SYSTEMS228 citations97

US5422411AJun 6, 1995

Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom

BALLARD POWER SYSTEMS123 citations97

US5985942ANov 16, 1999

α, β, β-trifluorostyrene-based composite membranes

BALLARD POWER SYSTEMS43 citations96

US5834523ANov 10, 1998

Substituted α,β,β-trifluorostyrene-based composite membranes

BALLARD POWER SYSTEMS64 citations96

US6723758B2Apr 20, 2004

Graft polymeric membranes and ion-exchange membranes formed therefrom

BALLARD POWER SYSTEMS95 citations95

US6437011B2Aug 20, 2002

α,β, β-trifluorostyrene-based composite membranes

BALLARD POWER SYSTEMS25 citations92

US6359019B1Mar 19, 2002

Graft polymeric membranes and ion-exchange membranes formed therefrom

BALLARD POWER SYSTEMS40 citations92

US5684192ANov 4, 1997

Substituted trifluorostyrene monomeric compositions

BALLARD POWER SYSTEMS21 citations92

US5602185AFeb 11, 1997

Substituted trifluorostyrene compositions

BALLARD POWER SYSTEMS28 citations92

US5773480AJun 30, 1998

Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom

BALLARD POWER SYSTEMS40 citations91

US5498639AMar 12, 1996

Trifluorostyrene and substituted trifluorostyrene copolymeric ion-exchange membranes

BALLARD POWER SYSTEMS26 citations91

US6258861B1Jul 10, 2001

α,β,β-trifluorostyrene-based composite membranes

BALLARD POWER SYSTEMS12 citations82