H01M 8/04044
Purification of heat exchange media
H01M8/04044 (Purification of heat exchange media) appears on 132 US grants and 216 published applications in this corpus.
Search patents in H01M- Granted patents
- 132
- Published applications
- 216
- Assignees
- 82
- Inventors
- 397
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 0 | 1 |
| 2002 | 2 | 6 |
| 2003 | 2 | 4 |
| 2004 | 3 | 8 |
| 2005 | 3 | 13 |
| 2006 | 5 | 10 |
| 2007 | 6 | 4 |
| 2008 | 5 | 12 |
| 2009 | 4 | 6 |
| 2010 | 4 | 6 |
| 2011 | 4 | 4 |
| 2012 | 3 | 9 |
| 2013 | 5 | 7 |
| 2014 | 4 | 6 |
| 2015 | 4 | 11 |
| 2016 | 2 | 11 |
| 2017 | 6 | 8 |
| 2018 | 5 | 9 |
| 2019 | 9 | 6 |
| 2020 | 11 | 10 |
| 2021 | 10 | 9 |
| 2022 | 10 | 9 |
| 2023 | 12 | 14 |
| 2024 | 3 | 7 |
| 2025 | 4 | 14 |
| 2026 | 6 | 12 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Ion exchanger filter device and ion exchanger cartridge8 Sep 2026US 12,728,411 B2Mann+Hummel GmbH
- Fuel cell system14 Apr 2026US 12,603,310 B2Toyota Jidosha Kabushiki Kaisha
- Maintaining method for cooling system24 Mar 2026US 12,582,979 B2Toyota Jidosha Kabushiki Kaisha
- Fuel cell system10 Mar 2026US 12,571,109 B2Toyota Jidosha Kabushiki Kaisha
- Integrated structure of ion filter and reservoir10 Mar 2026US 12,573,645 B2Hyundai Motor Company
- Fuel cell system1 Oct 2026US 2026/0302277 A1Honda Motor Co., Ltd.
- Thermal management system for a fuel cell vehicle24 Sep 2026US 2026/0290863 A1AB Volvo Penta
- Single piece filtering element for a fluid recirculation system for an air conditioining system such as a system for cooling a battery assembly in particular for electric vehicles6 Aug 2026US 2026/0225007 A1Gvs S. P. A.
- Filter unit with particle filter and ion exchanger and cooling circuit with filter unit16 Jul 2026US 2026/0204599 A1Mann+Hummel GmbH
- Coolant expansion tank for fuel cell stack vehicle cooling system2 Jul 2026US 2026/0188711 A1Volvo Truck Corporation
Most cited
By later US patents
- Integrated fuel cell system112US 6,376,113 B1IdaTech, LLC · 2002
- Direct antifreeze cooled fuel cell power plant51US 6,432,566 B1UTC Fuel Cells, LLC · 2002
- Integrated fuel cell system44US 6,869,707 B2IdaTech, LLC · 2005
- Cooling system for fuel cell32US 6,673,482 B2Honda Giken Kogyo Kabushiki Kaisha · 2004
- Integrated fuel cell system27US 6,994,927 B2IdaTech, LLC · 2006