H01M
Batteries and fuel cells
Official title: Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
H01M (Batteries and fuel cells) appears on 108,332 US grants and 162,902 published applications in this corpus.
Search patents in H01M- Granted patents
- 108,332
- Published applications
- 162,902
- Assignees
- 16,883
- Inventors
- 155,252
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 454 | 0 |
| 1977 | 471 | 0 |
| 1978 | 511 | 0 |
| 1979 | 327 | 0 |
| 1980 | 477 | 0 |
| 1981 | 456 | 0 |
| 1982 | 409 | 0 |
| 1983 | 411 | 0 |
| 1984 | 399 | 0 |
| 1985 | 445 | 0 |
| 1986 | 397 | 0 |
| 1987 | 404 | 0 |
| 1988 | 406 | 0 |
| 1989 | 449 | 0 |
| 1990 | 414 | 0 |
| 1991 | 407 | 0 |
| 1992 | 509 | 0 |
| 1993 | 557 | 0 |
| 1994 | 607 | 0 |
| 1995 | 683 | 0 |
| 1996 | 828 | 0 |
| 1997 | 872 | 0 |
| 1998 | 970 | 0 |
| 1999 | 937 | 0 |
| 2000 | 1114 | 0 |
| 2001 | 1278 | 588 |
| 2002 | 1357 | 1966 |
| 2003 | 1475 | 2422 |
| 2004 | 1455 | 3017 |
| 2005 | 1199 | 3046 |
| 2006 | 1349 | 3382 |
| 2007 | 1282 | 3398 |
| 2008 | 1315 | 3510 |
| 2009 | 1676 | 4201 |
| 2010 | 2631 | 4694 |
| 2011 | 2551 | 4992 |
| 2012 | 3030 | 5308 |
| 2013 | 3249 | 5700 |
| 2014 | 3768 | 6121 |
| 2015 | 4405 | 6391 |
| 2016 | 4369 | 6038 |
| 2017 | 4988 | 6105 |
| 2018 | 4901 | 6611 |
| 2019 | 5757 | 7184 |
| 2020 | 6149 | 7999 |
| 2021 | 5615 | 7822 |
| 2022 | 5815 | 9877 |
| 2023 | 5633 | 11845 |
| 2024 | 6493 | 13769 |
| 2025 | 6977 | 14520 |
| 2026 | 5701 | 12396 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H01M 10/00Rechargeable batteries60,982
- H01M 4/00Electrodes38,829
- H01M 50/00Battery cases, separators and other inactive parts36,335
- H01M 8/00Fuel cells27,574
- H01M 2220/00Batteries for particular applicationsIndexing code17,157
- H01M 2300/00ElectrolytesIndexing code13,214
- H01M 6/00Single-use batteries7,694
- H01M 2250/00Fuel cells for particular applicationsIndexing code5,059
All 12 main groupsShow fewer
Recent patents
- High voltage cable routing for electrified vehicle6 Oct 2026US 12,752,140 B2Oshkosh Corporation
- Injection nozzle6 Oct 2026US 12,752,287 B2Samsung SDI.Co., Ltd.
- Forming method of linear pattern including solid particles and transfer plate6 Oct 2026US 12,752,299 B2Canon Kabushiki Kaisha
- Flattening device6 Oct 2026US 12,752,328 B2Contemporary Amperex Technology (Hong Kong) Limited
- Cutting mechanism and feeding device6 Oct 2026US 12,752,451 B2Wuxi Lead Intelligent Equipment Co., Ltd.
- High voltage cable routing for electrified vehicle8 Oct 2026US 2026/0306888 A1Oshkosh Corporation
- Carbon dioxide adsorption battery, charge/discharge device, and carbon dioxide concentration device8 Oct 2026US 2026/0307004 A1Kuraray Co., Ltd.
- Hollow fiber membrane module8 Oct 2026US 2026/0307014 A1Nok Corporation
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0307067 A1Toyota Jidosha Kabushiki Kaisha
- Method for disassembling electrode assembly and device for disassembling electrode assembly8 Oct 2026US 2026/0307122 A1Prime Planet Energy & Solutions, Inc.
Most cited
By later US patents
- Power control arrangements for surgical instruments and batteries2,057US 8,632,525 B2Ethicon Endo-Surgery, Inc. · 2014
- Surgical instrument having a power control circuit1,889US 8,695,866 B2Ethicon Endo-Surgery, Inc. · 2014
- Motor driven electrosurgical device with mechanical and electrical feedback1,840US 9,161,803 B2Ethicon Endo-Surgery, Inc. · 2015
- Cordless power system1,824US 7,688,028 B2Black & Decker Inc. · 2010
- Interactive displays1,824US 9,283,054 B2Ethicon Endo-Surgery, Inc. · 2016