US Patent No: 7,691,271
Number of patents in Portfolio can not be more than 2000
Filamentous carbon particles for cleaning oil spills and method of production
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Apr 6, 2010
Issued date -
May 30, 2007
filing date -
11/807,803
serial no -
In Force
status
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Abstract
A compact hydrogen generator is coupled to or integrated with a fuel cell for portable power applications. Hydrogen is produced via thermocatalytic decomposition (cracking, pyrolysis) of hydrocarbon fuels in oxidant-free environment. The apparatus can utilize a variety of hydrocarbon fuels, including natural gas, propane, gasoline, kerosene, diesel fuel, crude oil (including sulfurous fuels). The hydrogen-rich gas produced is free of carbon oxides or other reactive impurities, so it could be directly fed to any type of a fuel cell. The catalysts for hydrogen production in the apparatus are carbon-based or metal-based materials and doped, if necessary, with a sulfur-capturing agent. Additionally disclosed are two novel processes for the production of two types of carbon filaments, and a novel filamentous carbon product. The hydrogen generator can be conveniently integrated with high temperature fuel cells to produce an efficient and self-contained source of electrical power.
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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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| 5,521,008 Manufacture of activated carbon fiber | 22 | 1994 | |
| 5,904,854 Method for purifying water | 20 | 1997 | |
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| 6,077,620 Fuel cell system with combustor-heated reformer | 149 | 1997 | |
| 6,451,465 Method for operating a combustor in a fuel cell system | 8 | 2000 | |
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| 6,299,994 Process for providing a pure hydrogen stream for use with fuel cells | 50 | 1999 | |
| 6,436,354 Apparatus for generation of pure hydrogen for use with fuel cells | 14 | 2000 | |
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| 4,737,161 Compact hydrogen generator | 45 | 1987 | |
| 5,470,360 Fuel cell power plant reformer burner gas flow control system | 38 | 1994 | |
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| 5,650,132 Process for producing hydrogen from hydrocarbon | 13 | 1995 | |
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| 5,593,640 Portable hydrogen generator | 52 | 1995 | |
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| 6,423,435 Fuel cell system with an assigned hydrogen generating arrangement | 8 | 2000 | |
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| 5,997,594 Steam reformer with internal hydrogen purification | 174 | 1997 | |
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| 5,763,114 Integrated reformer/CPN SOFC stack module design | 57 | 1997 | |
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| 6,245,309 Method and devices for producing hydrogen by plasma reformer | 38 | 1999 | |
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| 5,110,559 Hydrogen generating apparatus | 33 | 1990 | |
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| 5,780,179 Fuel cell system for use on mobile bodies | 75 | 1996 | |
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| 5,888,470 Process for the production of hydrogen and of energy | 8 | 1996 | |
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| 5,641,585 Miniature ceramic fuel cell | 78 | 1995 | |
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| 5,229,102 Catalytic ceramic membrane steam-hydrocarbon reformer | 227 | 1990 | |
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| 5,897,970 System for production of high-purity hydrogen, process for production of high-purity hydrogen, and fuel cell system | 87 | 1997 | |
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| 6,231,831 Hydrogen separating membrane, methanol reformation system equipped therewith, and operating method therefor | 39 | 1998 | |
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| 5,938,800 Compact multi-fuel steam reformer | 93 | 1997 | |
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| 6,103,373 Carbon fiber material and electrode materials and method of manufacture therefor | 20 | 1998 | |
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| 5,284,717 Method for producing raw materials for a reformer by cracking and desulfurizing petroleum fuels | 19 | 1993 | |
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| 5,932,181 Natural gas-using hydrogen generator | 66 | 1997 | |
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| 5,366,819 Thermally integrated reformer for solid oxide fuel cells | 59 | 1993 | |
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| 5,643,670 Particulate carbon complex | 22 | 1993 | |
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| 6,409,974 Water gas shift process and apparatus for purifying hydrogen for use with fuel cells | 19 | 1998 | |
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| 5,401,589 Application of fuel cells to power generation systems | 197 | 1993 | |
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| 5,601,937 Hydrocarbon reformer for electrochemical cells | 63 | 1995 | |
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| 5,858,314 Thermally enhanced compact reformer | 120 | 1996 | |
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| 4,292,505 Furnace for generating heat by electrical resistance | 5 | 1979 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 6, 2013 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 6, 2017 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 6, 2021 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |