H01M 8/0687
Reactant purification by the use of membranes or filters
Official title: {Reactant purification by the use of membranes or filters}
H01M8/0687 (Reactant purification by the use of membranes or filters) appears on 319 US grants and 510 published applications in this corpus.
Search patents in H01M- Granted patents
- 319
- Published applications
- 510
- Assignees
- 243
- Inventors
- 1,053
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 5 | 4 |
| 2002 | 4 | 13 |
| 2003 | 6 | 14 |
| 2004 | 5 | 16 |
| 2005 | 3 | 33 |
| 2006 | 11 | 28 |
| 2007 | 12 | 36 |
| 2008 | 12 | 19 |
| 2009 | 14 | 23 |
| 2010 | 21 | 17 |
| 2011 | 14 | 16 |
| 2012 | 19 | 13 |
| 2013 | 7 | 17 |
| 2014 | 16 | 41 |
| 2015 | 14 | 19 |
| 2016 | 23 | 22 |
| 2017 | 17 | 27 |
| 2018 | 19 | 11 |
| 2019 | 18 | 15 |
| 2020 | 17 | 18 |
| 2021 | 9 | 14 |
| 2022 | 13 | 15 |
| 2023 | 11 | 15 |
| 2024 | 7 | 23 |
| 2025 | 16 | 24 |
| 2026 | 6 | 17 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Device and method for cleaning a fluid for the operation of a fuel cell1 Sep 2026US 12,725,812 B2Robert Bosch GmbH
- Fuel cell stack and fuel gas release method21 Jul 2026US 12,689,052 B2Honda Motor Co., Ltd.
- Fuel cell system14 Jul 2026US 12,683,177 B2Robert Bosch GmbH
- Coupling device and combination and assembly thereof with a tube12 May 2026US 12,623,183 B2Technische Universiteit Eindhoven
- Fuel cell system17 Feb 2026US 12,555,807 B2Hyundai Motor Company
- Hydrocarbon fuel cell24 Sep 2026US 2026/0290866 A1
- Vehicle power supply system3 Sep 2026US 2026/0257569 A1Obshchestvo S Ogranichennoi Otvetstvennostiu "Evokargo"
- Fuel cell apparatus including filter module27 Aug 2026US 2026/0253930 A1Hyundai Motor Company
- Method for operating an air system, and control unit13 Aug 2026US 2026/0237699 A1Robert Bosch GmbH
- Filter element for filtering a gaseous fluid6 Aug 2026US 2026/0225022 A1Mann+Hummel GmbH
Most cited
By later US patents
- Hydrogen-selective metal membrane modules and method of forming the same135US 6,319,306 B1IdaTech, LLC · 2001
- Fuel cell system controller115US 6,495,277 B1IdaTech, LLC · 2002
- Method of linking membrane purification of hydrogen to its generation by steam reforming of a methanol-like fuel107US 6,171,574 B2Walter Juda Associates, Inc. · 2001
- Hydrogen-selective metal membrane modules and method of forming the same87US 6,458,189 B1IdaTech, LLC · 2002
- Process for providing a pure hydrogen stream for use with fuel cells71US 6,299,994 B1Uop LLC · 2001