H01M 4/742
Perforated material
Official title: {perforated material}
H01M4/742 (Perforated material) appears on 214 US grants and 227 published applications in this corpus.
Search patents in H01M- Granted patents
- 214
- Published applications
- 227
- Assignees
- 148
- Inventors
- 696
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 1 |
| 2002 | 19 | 6 |
| 2003 | 5 | 8 |
| 2004 | 8 | 5 |
| 2005 | 2 | 3 |
| 2006 | 3 | 7 |
| 2007 | 2 | 4 |
| 2008 | 2 | 3 |
| 2009 | 0 | 8 |
| 2010 | 5 | 9 |
| 2011 | 4 | 11 |
| 2012 | 9 | 11 |
| 2013 | 6 | 7 |
| 2014 | 6 | 7 |
| 2015 | 8 | 5 |
| 2016 | 8 | 8 |
| 2017 | 2 | 5 |
| 2018 | 5 | 7 |
| 2019 | 7 | 11 |
| 2020 | 11 | 17 |
| 2021 | 4 | 15 |
| 2022 | 8 | 14 |
| 2023 | 8 | 13 |
| 2024 | 14 | 12 |
| 2025 | 11 | 11 |
| 2026 | 6 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mesh current collector for dry electrode lamination6 Oct 2026US 12,755,954 B2GM Global Technology Operations LLC
- Metal sheet, battery, nickel-zinc battery and method for manufacturing metal sheet15 Sep 2026US 12,738,507 B2Sumitomo Electric Industries, Ltd.
- Electrode for secondary battery with improved safety, manufacturing method thereof, and secondary battery including same electrode21 Apr 2026US 12,609,405 B2LG Energy Solution, Ltd.
- Electrode, method for preparing same, battery and electrical apparatus31 Mar 2026US 12,592,392 B2Contemporary Amperex Technology (Hong Kong) Limited
- Method for producing lithium-ion batteries, in particular high-power batteries, and battery obtained by this method24 Mar 2026US 12,586,875 B2I-Ten
- Electrode plate and rechargeable battery including the same17 Sep 2026US 2026/0279838 A1Samsung SDI.Co., Ltd.
- Corrugated fuel electrode13 Aug 2026US 2026/0237688 A1Form Energy, Inc.
- Battery cell with reduced formation of inactive lithium23 Jul 2026US 2026/0213218 A1GM Global Technology Operations LLC
- Method for producing a negative electrode, negative electrode, galvanic cell, and uses of the galvanic cell9 Jul 2026US 2026/0196501 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Cylindrical electrochemical cells and methods of forming the same2 Jul 2026US 2026/0188703 A1Medtronic, Inc.
Most cited
By later US patents
- Secondary battery243US 5,824,434 ACanon Kabushiki Kaisha · 1998
- Electrochemical metal-air cell and electrically and mechanically rechargeable anodes for use therein95US 5,318,861 AElectric Fuel Limited · 1994
- Negative electrode for secondary battery88US 5,162,178 ARicoh Company, Ltd. · 1992
- Secondary battery78US 6,391,492 B1Canon Kabushiki Kaisha · 2002
- High energy density secondary battery for repeated use70US 6,395,423 B1Canon Kabushiki Kaisha · 2002