H01M 8/247
Arrangements for tightening a stack, for accommodation of a stack in a
Official title: Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
H01M8/247 (Arrangements for tightening a stack, for accommodation of a stack in a) appears on 1,765 US grants and 2,427 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,765
- Published applications
- 2,427
- Assignees
- 650
- Inventors
- 4,006
- Latest grant
- 6 Oct 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
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| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
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| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
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| 1996 | 15 | 0 |
| 1997 | 10 | 0 |
| 1998 | 17 | 0 |
| 1999 | 26 | 0 |
| 2000 | 22 | 0 |
| 2001 | 27 | 13 |
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| 2021 | 78 | 83 |
| 2022 | 103 | 124 |
| 2023 | 87 | 124 |
| 2024 | 58 | 87 |
| 2025 | 83 | 96 |
| 2026 | 38 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Fuel cell stack, fuel cell device and fuel cell vehicle8 Sep 2026US 12,731,799 B2kraftwerk ASSETS Inc.
- Fuel cell dry end with o-ring compression seal1 Sep 2026US 12,725,810 B2GM Global Technology Operations LLC
- Clamping and holding apparatus11 Aug 2026US 12,706,320 B2
- Fuel cell device8 Oct 2026US 2026/0312110 A1Toyota Jidosha Kabushiki Kaisha
- End unit of fuel cell1 Oct 2026US 2026/0302282 A1Honda Motor Co., Ltd.
- Centralized hydrogen distribution system for electric vehicle and electric vehicle including same1 Oct 2026US 2026/0302292 A1American Honda Motor Co., Inc.
- Fuel cell and fuel cell system1 Oct 2026US 2026/0302302 A1Honda Motor Co., Ltd.
- Fuel cell system1 Oct 2026US 2026/0302303 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Application of fuel cells to power generation systems246US 5,401,589 ACJBD Limited · 1995
- Apparatus and method for heating subterranean formations using fuel cells241US 6,684,948 B12004
- Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant195US 5,573,867 AWestinghouse Electric Corp. · 1996
- Solid oxide fuel cell generator with removable modular fuel cell stack configurations188US 5,741,605 AWestinghouse Electric Corp. · 1998
- Miniature ceramic fuel cell154US 5,641,585 ALockheed Idaho Technologies Company · 1997