H01M 2250/405
Cogeneration of heat or hot water
H01M2250/405 (Cogeneration of heat or hot water) appears on 209 US grants and 352 published applications in this corpus.
Search patents in H01M- Granted patents
- 209
- Published applications
- 352
- Assignees
- 138
- Inventors
- 661
- Latest grant
- 7 Jul 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 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 6 |
| 2003 | 3 | 13 |
| 2004 | 6 | 8 |
| 2005 | 2 | 14 |
| 2006 | 12 | 10 |
| 2007 | 6 | 25 |
| 2008 | 7 | 13 |
| 2009 | 4 | 27 |
| 2010 | 8 | 22 |
| 2011 | 10 | 16 |
| 2012 | 10 | 25 |
| 2013 | 12 | 17 |
| 2014 | 21 | 38 |
| 2015 | 7 | 29 |
| 2016 | 18 | 17 |
| 2017 | 16 | 8 |
| 2018 | 16 | 11 |
| 2019 | 8 | 11 |
| 2020 | 8 | 5 |
| 2021 | 3 | 7 |
| 2022 | 14 | 4 |
| 2023 | 3 | 10 |
| 2024 | 3 | 7 |
| 2025 | 4 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Afterburners including methods of making and operating7 Jul 2026US 12,676,325 B2WATT Fuel Cell Corp.
- SOE-SOFC-CCS hybrid system26 May 2026US 12,640,384 B2Fci
- Fuel cell system14 Apr 2026US 12,603,312 B2LG Electronics Inc.
- Power generation system23 Dec 2025US 12,506,356 B2GeoPura Ltd
- Apparatuses and methods for carbon dioxide capturing and electrical energy producing system10 Jun 2025US 12,327,854 B2
- Fuel cell vehicle and regenerative electrical power consumption method for fuel cell vehicle1 Oct 2026US 2026/0296225 A1Honda Motor Co., Ltd.
- Afterburners including methods of making and operating1 Oct 2026US 2026/0302276 A1WATT Fuel Cell Corp.
- Apparatus for heat transfer between, within, and amongst electrochemical cells, electrochemical cell stacks, and thermochemical reactors, such as a carbon reactors, in carbon-oxygen batteries as well as other devices and uses thereof24 Sep 2026US 2026/0290859 A1Noon Energy
- Electrochemical cell system including a heat recovery unit with exhaust backflow prevention27 Aug 2026US 2026/0253922 A1Bloom Energy Corporation
- Power generation system12 Mar 2026US 2026/0074554 A1GeoPura Ltd
Most cited
By later US patents
- Apparatus and method for heating subterranean formations using fuel cells241US 6,684,948 B12004
- Energy supply system for optimizing energy cost, energy consumption and emission of pollutants187US 5,432,710 AOsaka Gas Co., Ltd. · 1995
- Fuel cell system controller115US 6,495,277 B1IdaTech, LLC · 2002
- Hybrid solid oxide fuel cell aircraft auxiliary power unit87US 6,834,831 B2The Boeing Company · 2004
- Textured electrolyte for a solid oxide fuel cell70US 7,045,237 B2Ion America Corporation · 2006