H01M 4/9033
Complex oxides, optionally doped, of the type m1meo3, m1 being an alkaline
Official title: {Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites}
H01M4/9033 (Complex oxides, optionally doped, of the type m1meo3, m1 being an alkaline) appears on 502 US grants and 689 published applications in this corpus.
Search patents in H01M- Granted patents
- 502
- Published applications
- 689
- Assignees
- 309
- Inventors
- 1,588
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
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| 1977 | 1 | 0 |
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| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
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| 2001 | 14 | 3 |
| 2002 | 5 | 17 |
| 2003 | 11 | 15 |
| 2004 | 10 | 32 |
| 2005 | 11 | 24 |
| 2006 | 6 | 21 |
| 2007 | 12 | 29 |
| 2008 | 11 | 25 |
| 2009 | 18 | 26 |
| 2010 | 13 | 33 |
| 2011 | 20 | 35 |
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| 2014 | 18 | 26 |
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| 2018 | 30 | 27 |
| 2019 | 22 | 36 |
| 2020 | 22 | 33 |
| 2021 | 21 | 36 |
| 2022 | 23 | 30 |
| 2023 | 27 | 25 |
| 2024 | 15 | 25 |
| 2025 | 19 | 24 |
| 2026 | 7 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Composite ceramic powder, method for manufacturing the powder, electrode for solid electrolytic fuel cell, and method for manufacturing the electrode110US 5,993,988 AJapan Fine Ceramics Center · 1999
- Fuel cell interconnect device108US 5,942,349 ACeramic Fuel Cells Limited · 1999
- Two component-three dimensional catalysis105US 6,355,093 B1Eltron Research, Inc. · 2002
- Electrochemical apparatus and process103US 5,589,285 ATechnology Management, Inc. · 1996
- Hybrid thin film/thick film solid oxide fuel cell and method of manufacturing the same86US 6,677,070 B2Hewlett-Packard Development Company, L. P. · 2004