Patent US5246791A successfully refreshed from Google Patents.
US5246791A
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Fuel cell containing a reforming catalyst
Assignee: Johnson Matthey PLC
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Filing: 1992-06-22
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Granted: 1993-09-21
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Expires: 2012-06-22
Abstract
Abstract A high temperature fuel cell containing a reforming catalyst with improved resistance to deactivation by the electrolyte of a high temperature fuel cell comprising ruthenium on a support.
Inventors
- 👤 Janet M. Fisher
- 👤 Philip S. Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:02
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; H01M8/0612; H01M8/0625; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
A high temperature fuel cell comprising a molten carbonate electrolyte, containing a reforming catalyst in contact with a hydrocarbon-containing fuel and subject to contact with the molten carbonate electrolyte, said reforming catalyst comprising ruthenium carried on a support and acting to reform said hydrocarbon-containing fuel to a hydrogen-containing fuel for the fuel cell.
Claim 2
Dependent Claim
53 words
A high temperature fuel cell comprising a molten carbonate electrolyte, containing a reforming catalyst in contact with a hydrocarbon-containing fuel and subject to contact with the molten carbonate electrolyte, said reforming catalyst comprising ruthenium carried on a support and acting to reform said hydrocarbon-containing fuel to a hydrogen-containing fuel for the fuel cell.
Claim 3
Dependent Claim
22 words
The high temperature fuel cell of claim 1, wherein the support comprises one or more rare earth oxides, zirconia, ceria or magnesia.
Claim 4
Dependent Claim
13 words
The high temperature fuel cell of claim 1, wherein the support comprises magnesia.
Claim 5
Dependent Claim
15 words
The high temperature fuel cell of claim 1, wherein the reforming catalyst further comprises nickel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |