H01M 8/04552
Of the individual fuel cell
Official title: {of the individual fuel cell}
H01M8/04552 (Of the individual fuel cell) appears on 539 US grants and 716 published applications in this corpus.
Search patents in H01M- Granted patents
- 539
- Published applications
- 716
- Assignees
- 213
- Inventors
- 1,447
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 4 |
| 2002 | 6 | 12 |
| 2003 | 7 | 20 |
| 2004 | 11 | 28 |
| 2005 | 11 | 33 |
| 2006 | 12 | 28 |
| 2007 | 12 | 30 |
| 2008 | 16 | 33 |
| 2009 | 13 | 35 |
| 2010 | 13 | 40 |
| 2011 | 24 | 31 |
| 2012 | 32 | 37 |
| 2013 | 34 | 23 |
| 2014 | 29 | 26 |
| 2015 | 37 | 38 |
| 2016 | 26 | 19 |
| 2017 | 20 | 28 |
| 2018 | 24 | 38 |
| 2019 | 35 | 24 |
| 2020 | 25 | 30 |
| 2021 | 34 | 20 |
| 2022 | 22 | 27 |
| 2023 | 26 | 36 |
| 2024 | 18 | 29 |
| 2025 | 23 | 21 |
| 2026 | 13 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Voltage measuring device for measuring the voltage of a plurality of electrochemical cells of an electrochemical reactor11 Aug 2026US 12,706,318 B2Alstom HydrogèNe SAS
- Fuel cell system23 Jun 2026US 12,665,208 B2Honda Motor Co., Ltd.
- Arrangement and method for determining hydrogen purity16 Jun 2026US 12,656,297 B2Siemens Energy Global GmbH & Co. KG
- Fuel cell array and fuel cell inspection method2 Jun 2026US 12,646,734 B2Hitachi High-Tech Corporation
- Fuel cell performance optimization methodology combined with simulation and experiment19 May 2026US 12,633,554 B2Catarc New Energy Vehicle Test Center (Tianjin) Co., Ltd.
- Conditioning method and conditioning device8 Oct 2026US 2026/0312092 A1Robert Bosch GmbH
- Fuel cell activation device1 Oct 2026US 2026/0302287 A1Honda Motor Co., Ltd.
- Contact Module for Monitoring a Fuel Cell Stack, Set of Contact Modules and Fuel Cell System24 Sep 2026US 2026/0287625 A1TE Connectivity Solutions GmbH
- Electrochemical cell24 Sep 2026US 2026/0290861 A1Saudi Arabian Oil Company
- Electrical interface for a fuel cell stack3 Sep 2026US 2026/0260909 A1Blue Origin Manufacturing, LLC
Most cited
By later US patents
- Method and apparatus for monitoring fuel cell performance359US 5,170,124 AMinister of National Defence of Her Majesty's Canadian Government · 1992
- Automatic voltage imbalance detector205US 4,424,491 AThe United States of America as represented by the United States Department of Energy · 1984
- PEM fuel cell monitoring system167US 5,763,113 AGeneral Motors Corporation · 1998
- Fuel cell generator and method of the same123US 5,677,073 AToyota Jidosha Kabushiki Kaisha · 1997
- Fuel cell and method for controlling same103US 6,096,449 AAvista Labs · 2000