H01M 8/04197
Preventing means for fuel crossover
Official title: {Preventing means for fuel crossover}
H01M8/04197 (Preventing means for fuel crossover) appears on 137 US grants and 224 published applications in this corpus.
Search patents in H01M- Granted patents
- 137
- Published applications
- 224
- Assignees
- 119
- Inventors
- 541
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 4 |
| 2003 | 1 | 5 |
| 2004 | 2 | 14 |
| 2005 | 3 | 15 |
| 2006 | 6 | 25 |
| 2007 | 4 | 25 |
| 2008 | 4 | 23 |
| 2009 | 11 | 17 |
| 2010 | 19 | 21 |
| 2011 | 6 | 14 |
| 2012 | 15 | 5 |
| 2013 | 6 | 9 |
| 2014 | 8 | 5 |
| 2015 | 13 | 6 |
| 2016 | 3 | 4 |
| 2017 | 4 | 4 |
| 2018 | 3 | 4 |
| 2019 | 5 | 4 |
| 2020 | 6 | 4 |
| 2021 | 5 | 4 |
| 2022 | 5 | 1 |
| 2023 | 3 | 3 |
| 2024 | 1 | 4 |
| 2025 | 2 | 4 |
| 2026 | 2 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- System and method for estimating hydrogen concentration of fuel cell14 Jul 2026US 12,683,174 B2Hyundai Motor Company
- Ion conducting layer for fuel cells suppressing crossover phenomenon and fuel cell comprising the same3 Feb 2026US 12,542,293 B2
- Electrochemical reactor, electrochemical reactor systems, processes for electrochemical reactions, and methods using same25 Nov 2025US 12,482,836 B2Georgia Tech Research Corporation
- Self-assembled surfactant structures12 Aug 2025US 12,384,699 B2Crosstek Holding Company LLC
- Fuel cell closing system3 Sep 2024US 12,080,922 B2Robert Bosch GmbH
- Regenerative fuel cell system25 Sep 2025US 2025/0300205 A1Honda Motor Co., Ltd.
- Air-independent propulsion fuel cell system12 Jun 2025US 2025/0192200 A1Hanwha Aerospace Co., Ltd.
- Electrochemical Reactor, Electrochemical Reactor Systems, Processes for Electrochemical Reactions, and Methods Using Same12 Jun 2025US 2025/0192202 A1Georgia Tech Research Corporation
- Module for an electrochemical device, having a longer useful life9 Jan 2025US 2025/0015314 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Methods and Systems for Reducing Crossover in Redox Flow Batteries12 Sep 2024US 2024/0304840 A1XL Batteries, Inc.
Most cited
By later US patents
- Membraneless electrochemical cell and microfluidic device without pH constraint30US 7,635,530 B2The Board of Trustees of the University of Illinois · 2009
- Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells29US 7,098,163 B2Cabot Corporation · 2006
- Proton exchange composite membranes, composite solutions, and method for manufacturing and fuel cell using the same21US 7,029,559 B2Korea Institute of Science and Technology · 2006
- Composite polymer electrolyte membranes and electrode assemblies for reducing fuel crossover in direct liquid feed fuel cells19US 7,368,200 B2Tekion Corp · 2008
- System and a method for manufacturing an electrolyte using electrodeposition18US 7,632,590 B2Hewlett-Packard Development Company, L. P. · 2009