Fuel cell stack

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6686082
APP PUB NO 20030108782A1
SERIAL NO

10013405

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fuel cell stack comprises fuel cell basic units, each of which including a gas diffuser/collector plate serving as an anode, an ion exchange membrane, disposed on top of the gas diffuser/collector plate and an air diffuser/collector plate serving as a cathode and disposed on top of the ion exchange membrane. The gas diffuser/collector has a face directed to the ion exchange membrane. This face is provided with a flow field incorporating a multiplicity of adjacent open-faced flow channels. Each open-faced flow channel has a cross-section continuously diminishing from its inlet to its outlet. The flow field, viewed from the top, forms a trapezoidal contour.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
POWERDISC DEVELOPMENT CORP. LTD.CHILLIWACK BC2

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Black, Shane Carver Chilliwack, CA 3 18
Leger, David Earl Chilliwack, CA 7 40
Mc, Donald Mark Chesley Cultus Lake, CA 2 13

Cited Art Landscape

Patent Info (Count) # Cites Year
 
DAIMLER AG (1)
5804326 Integrated reactant and coolant fluid flow field layer for an electrochemical fuel cell 36 1996
 
HONDA GIKEN KOGYO KABUSHIKI KAISHA (1)
6048633 Fuel cell stack 35 1998
 
PLUG POWER INC. (1)
5981098 Fluid flow plate for decreased density of fuel cell assembly 69 1997
 
NIPPON PILLAR PACKING CO., LTD. (1)
* 6468685 Separator for a fuel cell 10 2000
 
SIEMENS AKTIENGESELLSCHAFT (1)
6080502 Fluid-cooled fuel cell with distribution ducts 24 1998
 
HUMBOLDT STATE UNIVERSITY FOUNDATION (1)
* 5879826 Proton exchange membrane fuel cell 37 1996
 
HYBRID POWER GENERATION SYSTEMS, LLC (1)
* 5686199 Flow field plate for use in a proton exchange membrane fuel cell 53 1996
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
6099984 Mirrored serpentine flow channels for fuel cell 72 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ZONGSHEN PEM POWER SYSTEMS INC. (2)
* 7261966 Apparatus and method for conducting fluid in a fuel cell and fuel cell employing same 1 2003
* 2004/0265,672 Apparatus and method for conducting fluid in a fuel cell and fuel cell employing same 5 2003
 
HONDA MOTOR CO., LTD. (2)
* 7517602 Fuel cell and fuel cell stack 0 2004
* 2005/0142,425 Fuel cell can fuel cell stack 3 2004
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
* 2009/0203,772 Vaginal Health Products 9 2009
 
HYTEON INC. (9)
7531264 Fuel cell stack with even distributing gas manifolds 2 2004
7524575 Flow field plate for use in fuel cells 1 2004
* 2005/0271,909 Flow field plate for use in fuel cells 10 2004
* 2005/0271,910 Fuel cell stack with even distributing gas manifolds 5 2004
* 2006/0008,695 Fuel cell with in-cell humidification 6 2004
7314680 Integrated fuel cell power module 3 2004
* 2006/0068,250 Integrated fuel cell power module 2 2004
7479333 Fuel cell stack with multiple groups of cells and flow passes 1 2004
* 2006/0127,709 Fuel cell stack with multiple groups of cells and flow passes 3 2004
 
POWERDISC DEVELOPMENT CORP. LTD. (1)
7838169 Fuel cell cathode flow field 0 2005
 
MORGAN CRUCIBLE COMPANY PLC, THE (5)
7067213 Flow field plate geometries 8 2002
* 2004/0023,100 Flow field plate geometries 3 2003
7838139 Flow field plate geometries 1 2003
* 2007/0105,000 Flow field plate geometries 10 2004
* 2005/0221,152 Flow field plate geometries 1 2004
* Cited By Examiner