H01M 8/04522
Of cathode exhausts
Official title: {of cathode exhausts}
H01M8/04522 (Of cathode exhausts) appears on 53 US grants and 74 published applications in this corpus.
Search patents in H01M- Granted patents
- 53
- Published applications
- 74
- Assignees
- 51
- Inventors
- 174
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 0 | 2 |
| 2002 | 0 | 1 |
| 2003 | 3 | 4 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 1 | 3 |
| 2009 | 2 | 3 |
| 2010 | 4 | 6 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 3 | 0 |
| 2014 | 2 | 4 |
| 2015 | 2 | 0 |
| 2016 | 1 | 5 |
| 2017 | 5 | 2 |
| 2018 | 2 | 2 |
| 2019 | 4 | 2 |
| 2020 | 2 | 2 |
| 2021 | 5 | 7 |
| 2022 | 1 | 5 |
| 2023 | 7 | 4 |
| 2024 | 2 | 5 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Activation method for fuel cell and device therefor21 Jul 2026US 12,689,051 B2Honda Motor Co., Ltd.
- Controlling PEMFC stack flooding7 Jan 2025US 12,191,542 B2Caterpillar Inc.
- Electrochemical cell system3 Sep 2024US 12,080,926 B2Nuvera Fuel Cells, LLC
- Fuel cell system, and method of estimating humidity in exhaust gas therefrom23 Jan 2024US 11,881,603 B2Subaru Corporation
- Fuel cell system19 Sep 2023US 11,764,377 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods for fuel cell cathode exhaust humidity control26 Feb 2026US 2026/0058177 A1Caterpillar Inc.
- Fuel cell system control22 Jan 2026US 2026/0024791 A1Volvo Truck Corporation
- Fire protection system and method for reducing a fire hazard in a protective space17 Apr 2025US 2025/0125391 A1HY.AIR Energy GmbH
- Fuel cell system and method for operating a fuel cell system23 Jan 2025US 2025/0030023 A1Robert Bosch GmbH
- Fuel cell system1 Aug 2024US 2024/0258536 A1Denso Corporation
Most cited
By later US patents
- Solid polymer electrolyte fuel cell and non-humidifying operating method therefor22US 6,566,001 B2Honda Giken Kogyo Kabushiki Kaisha · 2003
- Fuel cell system and method of operation8US 6,939,631 B2General Motors Corporation · 2005
- Method of operating fuel cell and power supply system6US 7,172,826 B2Sony Corporation · 2007
- Fuel cell system utilizing control of operating current to adjust moisture content within fuel cell5US 7,318,971 B2Denso Corporation · 2008
- Moisture sensor and fuel cell system using same3US 7,087,326 B2Denso Corporation · 2006