H01M 8/04082
Arrangements for control of reactant parameters
Official title: Arrangements for control of reactant parameters, e.g. pressure or concentration
H01M8/04082 (Arrangements for control of reactant parameters) appears on 8,031 US grants and 11,826 published applications in this corpus.
Search patents in H01M- Granted patents
- 8,031
- Published applications
- 11,826
- Assignees
- 2,035
- Inventors
- 14,368
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 14 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 14 | 0 |
| 1994 | 22 | 0 |
| 1995 | 16 | 0 |
| 1996 | 20 | 0 |
| 1997 | 25 | 0 |
| 1998 | 29 | 0 |
| 1999 | 48 | 0 |
| 2000 | 58 | 0 |
| 2001 | 89 | 70 |
| 2002 | 128 | 290 |
| 2003 | 200 | 382 |
| 2004 | 205 | 520 |
| 2005 | 207 | 581 |
| 2006 | 238 | 630 |
| 2007 | 219 | 710 |
| 2008 | 248 | 639 |
| 2009 | 281 | 693 |
| 2010 | 449 | 647 |
| 2011 | 406 | 457 |
| 2012 | 443 | 373 |
| 2013 | 344 | 343 |
| 2014 | 368 | 413 |
| 2015 | 337 | 423 |
| 2016 | 274 | 416 |
| 2017 | 340 | 345 |
| 2018 | 305 | 371 |
| 2019 | 351 | 384 |
| 2020 | 362 | 383 |
| 2021 | 336 | 360 |
| 2022 | 372 | 445 |
| 2023 | 380 | 551 |
| 2024 | 257 | 569 |
| 2025 | 292 | 433 |
| 2026 | 237 | 398 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel cell vehicle with differential pressure flow meter for humidity measurement6 Oct 2026US 12,752,667 B2Ford Global Technologies, LLC
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Fuel cell system including ejector6 Oct 2026US 12,755,990 B2Versa Power Systems, Ltd.
- Fuel-cell exhaust system6 Oct 2026US 12,755,991 B2Purem GmbH
- Hollow fiber membrane module8 Oct 2026US 2026/0307014 A1Nok Corporation
- Wall element, especially for a safe chamber, as well as a safe chamber, an aircraft component and an aircraft equipped therewith8 Oct 2026US 2026/0307817 A1
- Fluid connector structure and hydrogen line for fuel cell8 Oct 2026US 2026/0312086 A1Nifco Inc.
- Managing a fuel cell system in a fuel cell vehicle8 Oct 2026US 2026/0312087 A1Volvo Truck Corporation
- Fuel cell system with improved humidifier8 Oct 2026US 2026/0312088 A1Plastic Omnium New Energies France
Most cited
By later US patents
- Coal gasification and hydrogen production system and method301US 5,955,039 ASiemens Westinghouse Power Corporation · 1999
- Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions283US 6,187,465 B12001
- Free-standing and aligned carbon nanotubes and synthesis thereof254US 6,863,942 B2The Research Foundation of State University of New York · 2005
- Fuel cell gas management system240US 6,013,385 AEmprise Corporation · 2000
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998