F24B 1/02
Closed stoves
F24B1/02 (Closed stoves) appears on 336 US grants and 238 published applications in this corpus.
Search patents in F24B- Granted patents
- 336
- Published applications
- 238
- Assignees
- 141
- Inventors
- 527
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 11 | 0 |
| 1980 | 18 | 0 |
| 1981 | 7 | 0 |
| 1982 | 16 | 0 |
| 1983 | 12 | 0 |
| 1984 | 16 | 0 |
| 1985 | 15 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 7 |
| 2008 | 1 | 9 |
| 2009 | 0 | 6 |
| 2010 | 1 | 6 |
| 2011 | 8 | 6 |
| 2012 | 0 | 2 |
| 2013 | 1 | 10 |
| 2014 | 5 | 11 |
| 2015 | 4 | 16 |
| 2016 | 6 | 15 |
| 2017 | 14 | 14 |
| 2018 | 10 | 15 |
| 2019 | 14 | 18 |
| 2020 | 16 | 14 |
| 2021 | 22 | 16 |
| 2022 | 11 | 17 |
| 2023 | 15 | 14 |
| 2024 | 12 | 10 |
| 2025 | 7 | 9 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24B 1/024For pulverulent fuels82
- F24B 1/028With means for regulating combustion82
- F24B 1/026With several combustion zones51
- F24B 1/022Easily collapsible or easily removable39
- F24B 1/08With fuel storage in a single undivided hopper within stove or range26
- F24B 1/04Built-up from glazed tiles12
- F24B 1/16With fuel storage in multiple or divided hoppers within the stove or3
Recent patents
- Combustible fuel burning stove with pellet adapter25 Aug 2026US 12,716,581 B2Solo Brands, LLC
- Ignition-based protocols for pellet grills19 May 2026US 12,631,336 B2
- Electronic closed-loop control device for fireplaces comprising a lower combustion system31 Mar 2026US 12,590,703 B2Maxitrol Company
- Fire pit10 Mar 2026US 12,571,541 B2AOB Products Company
- Method and device for controlling the combustion in furnace systems17 Feb 2026US 12,553,607 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Real Flame Fireplace with Ash Cleaning Function8 Oct 2026US 2026/0309333 A1Ningbo Xinbaole Precision Machinery Co., Ltd
- Grateless, Back Drafted and Back Fed Pellet Stove8 Oct 2026US 2026/0309334 A1
- Biomass heater system and method20 Aug 2026US 2026/0243431 A1The Research Foundation for The State University of New York
- Fireplace with a standardized technological base30 Jul 2026US 2026/0218911 A1Stuv S.A.
- Electronic closed-loop control device for fireplaces comprising a lower combustion system23 Jul 2026US 2026/0210553 A1Maxitrol Company
Most cited
By later US patents
- Portable cooking device108US 5,797,386 A1998
- Mobile pellet stove with thermal barrier and ventilated firepot88US 5,429,110 ATSD Industries, Inc. · 1995
- Electronic control and method for increasing efficiency of heating and cooling systems70US 4,682,473 A1987
- Apparatus for cooking using wood pellets62US 7,900,553 B12011
- Cooking grill using pellet fuel59US 9,814,354 B2Crystal Spring Colony Farms Ltd. · 2017