H01M 8/04126
Humidifying
Official title: {Humidifying}
H01M8/04126 (Humidifying) appears on 959 US grants and 1,499 published applications in this corpus.
Search patents in H01M- Granted patents
- 959
- Published applications
- 1,499
- Assignees
- 346
- Inventors
- 2,444
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 6 |
| 2002 | 8 | 25 |
| 2003 | 12 | 37 |
| 2004 | 20 | 52 |
| 2005 | 19 | 61 |
| 2006 | 25 | 60 |
| 2007 | 27 | 84 |
| 2008 | 25 | 86 |
| 2009 | 33 | 81 |
| 2010 | 55 | 85 |
| 2011 | 55 | 68 |
| 2012 | 66 | 53 |
| 2013 | 49 | 41 |
| 2014 | 49 | 53 |
| 2015 | 48 | 62 |
| 2016 | 31 | 37 |
| 2017 | 42 | 53 |
| 2018 | 41 | 35 |
| 2019 | 36 | 49 |
| 2020 | 43 | 43 |
| 2021 | 39 | 58 |
| 2022 | 48 | 63 |
| 2023 | 53 | 76 |
| 2024 | 29 | 111 |
| 2025 | 42 | 68 |
| 2026 | 52 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Humidifier leak diagnosis system and method for a fuel cell system6 Oct 2026US 12,755,993 B2Hyundai Motor Company
- Hollow fiber membrane module29 Sep 2026US 12,746,514 B2Nok Corporation
- Cartridge of fuel cell humidifier, and fuel cell humidifier29 Sep 2026US 12,746,515 B2Kolon Industries, Inc.
- Hollow fiber membrane module8 Oct 2026US 2026/0307014 A1Nok Corporation
- Fuel cell system with improved humidifier8 Oct 2026US 2026/0312088 A1Plastic Omnium New Energies France
- Hollow fiber membranes comprising a poly(aryl ether sulfone) and a water-soluble polymer additive1 Oct 2026US 2026/0295540 A1BASF SE
- High-temperature fuel cell system and method of operating it1 Oct 2026US 2026/0302279 A1Cellcentric GmbH & Co. KG
- Stack plate, stack plate device and humidifier1 Oct 2026US 2026/0302280 A1Mann+Hummel GmbH
Most cited
By later US patents
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998
- Proton exchange membrane fuel cell power system111US 6,030,718 AAvista Corporation · 2000
- Plate and frame fluid exchanging assembly with unitary plates and seals102US 6,171,374 B2Ballard Power Systems Inc. · 2001
- System and method for controlling the humidity level of a fuel cell92US 6,376,111 B1General Motors Corporation · 2002
- Fuel cell system with humidity determination87US 6,524,733 B1Toyota Jidosha Kabushiki Kaisha · 2003