US Patent No: 6,492,048
Number of patents in Portfolio can not be more than 2000
Segregated exhaust fuel cell generator
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Dec 10, 2002
Issued date -
Aug 10, 2000
filing date -
09/636,249
serial no -
In Force
status
Importance
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Abstract
A fuel cell generator contains a plurality of fuel cells (11) in a generator chamber (20), where oxidant (13) and fuel (1) are fed to the generator chamber (20), where both fuel and oxidant react to form depleted fuel and depleted oxidant, which are separated by steam (2) at a pressure higher than that of both the depleted oxidant stream and the depleted fuel stream, and where all oxidant and fuel passages do not communicate with each other, so that fuel and oxidant (in whatever form) do not mix, and where depleted fuel (26), consisting essentially of carbon dioxide and water, exits for further treatment, so that the remaining carbon dioxide can be separated from the remaining water and is not vented to the atmosphere.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,395,468 Fuel cell generator | 100 | 1981 | |
| 4,664,986 High thermal conductivity gas feeder system | 18 | 1986 | |
| 4,801,369 Preventing fluids in leakable enclosures from intermixing | 6 | 1987 | |
| 5,047,299 Electrochemical cell apparatus having an integrated reformer-mixer nozzle-mixer diffuser | 81 | 1990 | |
| 5,733,675 Electrochemical fuel cell generator having an internal and leak tight hydrocarbon fuel reformer | 76 | 1995 | |
| 5,573,867 Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant | 91 | 1996 | |
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| 5,064,733 Electrochemical conversion of CO.sub.2 and CH.sub.4 to C.sub.2 hydrocarbons in a single cell | 25 | 1990 | |
| 5,712,055 Multi-stage fuel cell arrangement | 17 | 1997 | |
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| 4,751,151 Recovery of carbon dioxide from fuel cell exhaust | 50 | 1986 | |
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| 5,134,043 Operation method for power generation system using fuel cell | 11 | 1991 | |
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| 5,866,090 Method for separation of carbon dioxide gas | 20 | 1996 | |
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| 5,928,806 Recycling of carbon dioxide into methyl alcohol and related oxygenates for hydrocarbons | 19 | 1998 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 10, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |