H01M 4/42
Alloys based on zinc
H01M4/42 (Alloys based on zinc) appears on 546 US grants and 688 published applications in this corpus.
Search patents in H01M- Granted patents
- 546
- Published applications
- 688
- Assignees
- 291
- Inventors
- 1,289
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 13 | 0 |
| 1998 | 11 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 25 | 6 |
| 2002 | 18 | 10 |
| 2003 | 17 | 22 |
| 2004 | 10 | 31 |
| 2005 | 9 | 22 |
| 2006 | 8 | 22 |
| 2007 | 15 | 30 |
| 2008 | 11 | 19 |
| 2009 | 16 | 23 |
| 2010 | 8 | 13 |
| 2011 | 17 | 28 |
| 2012 | 13 | 25 |
| 2013 | 12 | 22 |
| 2014 | 15 | 26 |
| 2015 | 21 | 34 |
| 2016 | 23 | 36 |
| 2017 | 21 | 29 |
| 2018 | 17 | 38 |
| 2019 | 27 | 22 |
| 2020 | 42 | 40 |
| 2021 | 13 | 38 |
| 2022 | 31 | 35 |
| 2023 | 15 | 39 |
| 2024 | 25 | 28 |
| 2025 | 22 | 27 |
| 2026 | 16 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Negative electrode for aqueous electrolyte cell and sheet-type cell29 Sep 2026US 12,749,739 B2Maxell, Ltd.
- Electrolyte hydrogel and its use in an electrochemical cell15 Sep 2026US 12,738,539 B2VARTA Microbattery GmbH
- Separators for aqueous zinc-ion cells and batteries, zinc metal batteries, and methods of fabricating a separator for use in a zinc metal battery15 Sep 2026US 12,738,598 B2Salient Energy Inc.
- Microbattery, and preparation method therefor and use thereof8 Sep 2026US 12,731,778 B2Wuhan University of Technology
- Phosphate based surfactants for alkaline battery anode25 Aug 2026US 12,719,049 B2Duracell U.S. Operations, Inc.
- Superfast recharging zinc-based energy storage devices3 Sep 2026US 2026/0260880 A1Nanotech Energy, Inc.
- Composition for electrode active material, and electrode and secondary battery comprising same27 Aug 2026US 2026/0253896 A1Cj Cheiljedang Corporation
- Alkaline dry-cell battery20 Aug 2026US 2026/0245863 A1Panasonic Intellectual Property Management Co., Ltd.
- Solid-state battery, and solid-state battery manufacturing method20 Aug 2026US 2026/0245870 A1Toyota Jidosha Kabushiki Kaisha
- Alkaline dry-cell battery20 Aug 2026US 2026/0245911 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Lithium anodes for electrochemical cells307US 6,797,428 B1Moltech Corporation · 2004
- Secondary battery243US 5,824,434 ACanon Kabushiki Kaisha · 1998
- Storage-stable, fluid dispensing device using a hydrogen gas generator197US 5,707,499 ACeramatec, Inc. · 1998
- Lithium anodes for electrochemical cells171US 6,936,381 B2Moltech Corporation · 2005
- Hybrid anode compositions for lithium ion batteries100US 8,119,288 B2Nanotek Instruments, Inc. · 2012