H01M 4/38
Of elements or alloys
Official title: of elements or alloys
H01M4/38 (Of elements or alloys) appears on 8,646 US grants and 14,711 published applications in this corpus.
Search patents in H01M- Granted patents
- 8,646
- Published applications
- 14,711
- Assignees
- 2,324
- Inventors
- 18,057
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 14 | 0 |
| 1978 | 18 | 0 |
| 1979 | 13 | 0 |
| 1980 | 10 | 0 |
| 1981 | 10 | 0 |
| 1982 | 14 | 0 |
| 1983 | 12 | 0 |
| 1984 | 15 | 0 |
| 1985 | 9 | 0 |
| 1986 | 19 | 0 |
| 1987 | 17 | 0 |
| 1988 | 16 | 0 |
| 1989 | 30 | 0 |
| 1990 | 25 | 0 |
| 1991 | 29 | 0 |
| 1992 | 32 | 0 |
| 1993 | 24 | 0 |
| 1994 | 37 | 0 |
| 1995 | 35 | 0 |
| 1996 | 59 | 0 |
| 1997 | 45 | 0 |
| 1998 | 65 | 0 |
| 1999 | 62 | 0 |
| 2000 | 68 | 0 |
| 2001 | 95 | 42 |
| 2002 | 84 | 124 |
| 2003 | 79 | 151 |
| 2004 | 102 | 165 |
| 2005 | 71 | 152 |
| 2006 | 62 | 170 |
| 2007 | 73 | 178 |
| 2008 | 73 | 155 |
| 2009 | 95 | 205 |
| 2010 | 107 | 202 |
| 2011 | 106 | 248 |
| 2012 | 122 | 313 |
| 2013 | 146 | 396 |
| 2014 | 226 | 486 |
| 2015 | 301 | 594 |
| 2016 | 346 | 650 |
| 2017 | 410 | 710 |
| 2018 | 452 | 709 |
| 2019 | 577 | 778 |
| 2020 | 684 | 975 |
| 2021 | 601 | 969 |
| 2022 | 640 | 1147 |
| 2023 | 625 | 1317 |
| 2024 | 750 | 1379 |
| 2025 | 694 | 1435 |
| 2026 | 442 | 1061 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01M 4/386Silicon or alloys based on silicon3,239
- H01M 4/381Alkaline or alkaline earth metals elements2,560
- H01M 4/40Alloys based on alkali metals1,076
- H01M 4/387Tin or alloys based on tin862
- H01M 4/383Hydrogen absorbing alloys626
- H01M 4/42Alloys based on zinc546
- H01M 4/46Alloys based on magnesium or aluminium541
- H01M 4/388Halogens45
All 9 subgroupsShow fewer
Recent patents
- Thickness control manifold for molten lithium dip coating6 Oct 2026US 12,753,478 B2GM Global Technology Operations LLC
- Positive electrode for secondary battery and secondary battery including the same6 Oct 2026US 12,755,962 B2LG Energy Solution, Ltd.
- Silicon carbon composite materials and method for making same6 Oct 2026US 12,755,964 B2Sicona Battery Technologies Pty Ltd
- Method for manufacturing negative electrode active material6 Oct 2026US 12,755,965 B2Toyota Jidosha Kabushiki Kaisha
- Anode electrode with anode active material layer including lithium silicon oxide or silicon oxide and styrene butadiene rubber6 Oct 2026US 12,755,975 B2GM Global Technology Operations LLC
- Carbon material, production method for carbon material, dispersion liquid, composition for electrodes, slurry for electrodes, electrode, positive electrode, negative electrode, lithium ion battery, carbon material precursor, and production method for carbon material precursor8 Oct 2026US 2026/0307998 A13Dc Inc.
- Negative electrode material for lithium-ion secondary battery, negative electrode for lithium-ion secondary battery, lithium-ion secondary battery, and method for producing negative electrode material for lithium-ion secondary battery8 Oct 2026US 2026/0311996 A1Resonac Corporation
- Anode for lithium secondary battery and lithium secondary battery including same8 Oct 2026US 2026/0311997 A1SK Innovation Co., Ltd.
- Negative electrode plate, electrochemical apparatus, and electronic apparatus8 Oct 2026US 2026/0311998 A1Ningde Amperex Technology Limited
- Anode material and battery8 Oct 2026US 2026/0312003 A1Btr New Material Group Co., Ltd.
Most cited
By later US patents
- Protective lithium ion conducting ceramic coating for lithium metal anodes and associate method376US 5,314,765 AMartin Marietta Energy Systems, Inc. · 1994
- Protective coatings for negative electrodes373US 6,025,094 APolyPlus Battery Company · 2000
- Lithium anodes for electrochemical cells319US 7,247,408 B2Sion Power Corporation · 2007
- Lithium anodes for electrochemical cells307US 6,797,428 B1Moltech Corporation · 2004
- Secondary battery243US 5,824,434 ACanon Kabushiki Kaisha · 1998