F24B 1/18
Stoves with open fires
Official title: Stoves with open fires, e.g. fireplaces
F24B1/18 (Stoves with open fires) appears on 1,307 US grants and 805 published applications in this corpus.
Search patents in F24B- Granted patents
- 1,307
- Published applications
- 805
- Assignees
- 396
- Inventors
- 1,844
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 58 | 0 |
| 1978 | 62 | 0 |
| 1979 | 54 | 0 |
| 1980 | 67 | 0 |
| 1981 | 75 | 0 |
| 1982 | 40 | 0 |
| 1983 | 32 | 0 |
| 1984 | 42 | 0 |
| 1985 | 32 | 0 |
| 1986 | 27 | 0 |
| 1987 | 18 | 0 |
| 1988 | 15 | 0 |
| 1989 | 23 | 0 |
| 1990 | 23 | 0 |
| 1991 | 32 | 0 |
| 1992 | 15 | 0 |
| 1993 | 15 | 0 |
| 1994 | 18 | 0 |
| 1995 | 14 | 0 |
| 1996 | 17 | 0 |
| 1997 | 27 | 0 |
| 1998 | 21 | 0 |
| 1999 | 24 | 0 |
| 2000 | 20 | 0 |
| 2001 | 19 | 11 |
| 2002 | 16 | 10 |
| 2003 | 20 | 32 |
| 2004 | 19 | 33 |
| 2005 | 18 | 38 |
| 2006 | 10 | 33 |
| 2007 | 7 | 25 |
| 2008 | 9 | 25 |
| 2009 | 3 | 21 |
| 2010 | 13 | 20 |
| 2011 | 11 | 25 |
| 2012 | 10 | 31 |
| 2013 | 19 | 35 |
| 2014 | 14 | 35 |
| 2015 | 16 | 27 |
| 2016 | 21 | 24 |
| 2017 | 15 | 35 |
| 2018 | 23 | 41 |
| 2019 | 25 | 45 |
| 2020 | 37 | 43 |
| 2021 | 31 | 41 |
| 2022 | 26 | 35 |
| 2023 | 35 | 33 |
| 2024 | 37 | 46 |
| 2025 | 36 | 41 |
| 2026 | 25 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24B 1/191Component parts565
- F24B 1/185With air-handling means, heat exchange means, or additional provisions for convection heating486
- F24B 1/1808Simulated fireplaces201
- F24B 1/181Free-standing fireplaces143
- F24B 1/182With additional provisions for cooking90
- F24B 1/183With additional provisions for heating water54
- F24B 1/1806Mounting of closed stoves in a fireplace40
- F24B 1/1802Adapted for the use of both solid fuel and another type of18
All 9 subgroupsShow fewer
Recent patents
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Most cited
By later US patents
- Spark arrestor and airflow control assembly for a portable cooking or heating device126US 7,644,711 B2The Big Green Egg, Inc. · 2010
- Direct vent fireplace124US 5,782,231 ATemco Fireplace Products, Inc. · 1998
- Draft hood locating device for combustion apparatus117US 5,752,500 ALennox Industries Inc. · 1998
- Flush-mounted fireplace assembly109US 9,004,060 B2Innovative Hearth Products LLC · 2015
- Portable cooking device108US 5,797,386 A1998