US Patent No: 6,951,697
Number of patents in Portfolio can not be more than 2000
Integrated systems for use with fuel cells, and methods
Stats
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Oct 4, 2005
Issued date -
Sep 10, 2002
filing date -
10/241,117
serial no -
In Force
status
Importance
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Abstract
Integrated systems, including components for control of contaminants, sound, and humidity, are provided for a fuel cell system. The integrated system combines contamination control, sound control, and water management. The contamination control system provides filtration for the intake air that provides oxygen to the fuel cell cathode, materials removed can include sub-micrometer particulate matter, salts oils, and chemicals. The sound control system reduces the level of noise emitted from the system by attenuating, resonating, or muffling the sound emitting from the air compressor used to move the air. The contamination control system can also provide security downstream of the compressor, by filtering the air to reduce the opportunity of lubricant from reaching the fuel cell. The water management system removes liquid water when excess is present. These systems are integrated in a variety of configurations to provide compact and thorough protection for the fuel cell.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,792,247 Integrated resonator and filter apparatus | 98 | 1996 | |
| 6,190,432 Filter arrangement; sealing system; and methods | 115 | 1999 | |
| 6,432,177 Air filter assembly for low temperature catalytic processes | 34 | 2000 | |
| 6,780,534 Filter assembly for intake air of fuel cell | 5 | 2001 | |
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| 5,981,096 Fuel cell system | 52 | 1998 | |
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| 6,074,769 Method of generating electric energy from regenerative biomass | 17 | 1997 | |
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| 6,124,052 Solid polymer electrolyte fuel cell system | 19 | 1998 | |
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| 6,057,051 Miniaturized fuel cell assembly | 84 | 1997 | |
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| 4,595,642 Fuel cell composite plant | 35 | 1985 | |
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| 6,309,769 Carbon monoxide filter layer | 21 | 2000 | |
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| 5,221,586 Power generation system using fuel cells | 40 | 1991 | |
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| 5,401,589 Application of fuel cells to power generation systems | 197 | 1993 | |
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| 5,156,925 Hydrogen removal system for metal/air cell | 34 | 1991 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 4, 2013 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 4, 2017 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |