H01M 4/381
Alkaline or alkaline earth metals elements
Official title: {Alkaline or alkaline earth metals elements (H01M4/40 takes precedence)}
H01M4/381 (Alkaline or alkaline earth metals elements) appears on 2,560 US grants and 4,552 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,560
- Published applications
- 4,552
- Assignees
- 956
- Inventors
- 7,126
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 12 | 0 |
| 1999 | 10 | 0 |
| 2000 | 16 | 0 |
| 2001 | 13 | 5 |
| 2002 | 6 | 21 |
| 2003 | 6 | 17 |
| 2004 | 15 | 23 |
| 2005 | 9 | 22 |
| 2006 | 10 | 26 |
| 2007 | 11 | 42 |
| 2008 | 9 | 38 |
| 2009 | 24 | 46 |
| 2010 | 25 | 47 |
| 2011 | 29 | 61 |
| 2012 | 27 | 63 |
| 2013 | 36 | 82 |
| 2014 | 58 | 133 |
| 2015 | 68 | 173 |
| 2016 | 98 | 209 |
| 2017 | 107 | 248 |
| 2018 | 140 | 240 |
| 2019 | 174 | 266 |
| 2020 | 244 | 369 |
| 2021 | 209 | 384 |
| 2022 | 247 | 420 |
| 2023 | 233 | 467 |
| 2024 | 283 | 465 |
| 2025 | 262 | 415 |
| 2026 | 137 | 270 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thickness control manifold for molten lithium dip coating6 Oct 2026US 12,753,478 B2GM Global Technology Operations LLC
- Method for manufacturing negative electrode active material6 Oct 2026US 12,755,965 B2Toyota Jidosha Kabushiki Kaisha
- Solid electrolyte including nitrogen and sulfur, electrochemical cell including solid electrolyte, and method of preparing sold electrolyte6 Oct 2026US 12,756,005 B2Samsung SDI.Co., Ltd.
- Crosslinker for electrolyte, electrolyte compositions and lithium-ion battery including the same6 Oct 2026US 12,756,007 B2National Cheng Kung University
- Negative electrode active material, negative electrode comprising negative electrode active material, secondary battery comprising negative electrode, and method for preparing negative electrode active material29 Sep 2026US 12,749,677 B2LG Energy Solution, Ltd.
- Positive electrodes for rechargeable batteries8 Oct 2026US 2026/0312040 A1Board of Regents, The University of Texas System
- Electrode additive containing metal nitrate, lithium metal battery using the same, and manufacturing method thereof8 Oct 2026US 2026/0312130 A1Korea Advanced Institute of Science and Technology
- Method for continuous intermittent extrusion and lamination of lithium metal foil for battery electrodes1 Oct 2026US 2026/0302158 A1Soelect Inc.
- Lithium metal electrodes1 Oct 2026US 2026/0302160 A1Sion Power Corporation
- Anode for lithium metal battery and method for manufacturing the same1 Oct 2026US 2026/0302192 A1Gwangju Institute of Science and Technology
Most cited
By later US patents
- Lithium anodes for electrochemical cells319US 7,247,408 B2Sion Power Corporation · 2007
- Liquid electrolyte lithium-sulfur batteries209US 6,030,720 APolyPlus Battery Company · 2000
- Ionically conductive composites for protection of active metal anodes203US 7,282,296 B2PolyPlus Battery Company · 2007
- High reliability electrochemical cell and electrode assembly therefor200US 5,439,760 AMedtronic, Inc. · 1995
- Rechargeable positive electrodes193US 5,686,201 APolyPlus Battery Company · 1997