H01M 8/04171
Using adsorbents, wicks or hydrophilic material
Official title: {using adsorbents, wicks or hydrophilic material}
H01M8/04171 (Using adsorbents, wicks or hydrophilic material) appears on 159 US grants and 256 published applications in this corpus.
Search patents in H01M- Granted patents
- 159
- Published applications
- 256
- Assignees
- 122
- Inventors
- 584
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 5 |
| 2003 | 3 | 9 |
| 2004 | 4 | 17 |
| 2005 | 4 | 10 |
| 2006 | 3 | 13 |
| 2007 | 8 | 27 |
| 2008 | 4 | 23 |
| 2009 | 9 | 33 |
| 2010 | 20 | 23 |
| 2011 | 12 | 19 |
| 2012 | 6 | 10 |
| 2013 | 17 | 9 |
| 2014 | 12 | 6 |
| 2015 | 9 | 8 |
| 2016 | 7 | 5 |
| 2017 | 6 | 9 |
| 2018 | 4 | 2 |
| 2019 | 5 | 4 |
| 2020 | 6 | 4 |
| 2021 | 1 | 1 |
| 2022 | 4 | 7 |
| 2023 | 3 | 4 |
| 2024 | 4 | 5 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating a fuel cell system, and fuel cell system15 Sep 2026US 12,738,514 B2Robert Bosch GmbH
- Additive application of microporous layer onto gas diffusion layer11 Mar 2025US 12,249,721 B2Hydrogenics Corporation
- Method for operating a fuel cell system, and fuel cell system11 Mar 2025US 12,249,742 B2Robert Bosch GmbH
- Water recovery system for fuel cells6 Aug 2024US 12,057,609 B2Hamilton Sundstrand Corporation
- System and method for increasing the efficiency for a solid oxide fuel cell system30 Jul 2024US 12,051,835 B2Cummins Power Generation IP, Inc.
- Separator used in fuel cell, and fuel cell19 Mar 2026US 2026/0081188 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for capturing carbon dioxide using a molten carbonate fuel cell12 Mar 2026US 2026/0074252 A1FuelCell Energy, Inc.
- Energy generation system2 Oct 2025US 2025/0309293 A1Hyundai Motor Company
- Power-generating element, power-generating apparatus, and power-generating method21 Nov 2024US 2024/0387842 A1Panasonic Intellectual Property Management Co., Ltd.
- Water recovery system for fuel cells24 Oct 2024US 2024/0356050 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Integrated fuel cell and heat engine hybrid system for high efficiency power generation54US 7,862,938 B2FuelCell Energy, Inc. · 2011
- Non-bipolar fuel cell stack configuration37US 6,194,095 B12001
- Power supply system, fuel pack constituting the system, and device driven by power generator and power supply system26US 6,777,118 B2Casio Computer Co., Ltd. · 2004
- Fuel cell elements with improved water handling capacity24US 6,291,093 B1California Institute of Technology · 2001
- Microcell electrochemical devices assemblies with water management subsystem, and method of making and using the same21US 6,403,248 B1Microcell Corporation · 2002