H01M 8/04417
Of the coolant
Official title: {of the coolant}
H01M8/04417 (Of the coolant) appears on 88 US grants and 135 published applications in this corpus.
Search patents in H01M- Granted patents
- 88
- Published applications
- 135
- Assignees
- 62
- Inventors
- 300
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 4 |
| 2004 | 1 | 5 |
| 2005 | 3 | 6 |
| 2006 | 3 | 6 |
| 2007 | 3 | 3 |
| 2008 | 3 | 4 |
| 2009 | 2 | 6 |
| 2010 | 3 | 5 |
| 2011 | 0 | 2 |
| 2012 | 4 | 5 |
| 2013 | 7 | 4 |
| 2014 | 2 | 5 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 3 | 9 |
| 2018 | 3 | 3 |
| 2019 | 6 | 6 |
| 2020 | 4 | 6 |
| 2021 | 10 | 7 |
| 2022 | 9 | 5 |
| 2023 | 8 | 11 |
| 2024 | 5 | 5 |
| 2025 | 2 | 15 |
| 2026 | 3 | 6 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Cooling system for aircraft23 Jun 2026US 12,662,021 B2Airbus Operations GmbH
- Connection block21 Apr 2026US 12,609,334 B2Robert Bosch GmbH
- Closed loop control for fuel cell water management7 Apr 2026US 12,597,621 B2Hyster-Yale Group, Inc.
- Methods and systems for optimizing lifetime of fuel cell system based on adjustment and constraint of thermoelectric ratio5 Aug 2025US 12,381,241 B1Catarc New Energy Vehicle Test Center (Tianjin) Co., Ltd.
- Multiple fuel cell radiator system1 Jul 2025US 12,347,902 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Fuel cell system25 Jun 2026US 2026/0179985 A1Toyota Jidosha Kabushiki Kaisha
- Method, control program, computer-readable data carrier and control device for controlling a fuel cell arrangement, as well as fuel cell arrangement and vehicle comprising same11 Jun 2026US 2026/0163032 A1Airbus Operations GmbH
- Method of diagnosing leakage of stack coolant and device therefor28 May 2026US 2026/0149017 A1Hyundai Motor Company
- Fuel cell coolant over-pressurization system7 May 2026US 2026/0128331 A1Honeywell International Inc.
- Method and apparatus for thermal regulation of a high temperature pem fuel cell stack5 Feb 2026US 2026/0038852 A1Advent Technologies
Most cited
By later US patents
- Temperature regulating system for a fuel cell powered vehicle97US 6,186,254 B1Xcelliss Fuel Cell Engines Inc. · 2001
- Electrochemical engine60US 6,195,999 B1General Motors Corporation · 2001
- Hybrid power supply apparatus for battery replacement applications45US 7,207,405 B2Cellex Power Products, Inc. · 2007
- Small vehicle with fuel cell that has elements cooled by ventilation system27US 7,108,091 B2Yamaha Hatsudoki Kabushiki Kaisha · 2006
- Thermal management system for fuel cell vehicle and control method thereof13US 11,139,491 B2Hyundai Motor Company · 2021