F23B 80/04
Combustion apparatus characterised by means creating a distinct flow path for flue
Official title: by means for guiding the flow of flue gases, e.g. baffles
F23B80/04 (Combustion apparatus characterised by means creating a distinct flow path for flue) appears on 47 US grants and 61 published applications in this corpus.
Search patents in F23B- Granted patents
- 47
- Published applications
- 61
- Assignees
- 33
- Inventors
- 103
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 4 |
| 2011 | 3 | 4 |
| 2012 | 1 | 4 |
| 2013 | 3 | 2 |
| 2014 | 2 | 3 |
| 2015 | 4 | 2 |
| 2016 | 2 | 5 |
| 2017 | 0 | 5 |
| 2018 | 4 | 3 |
| 2019 | 3 | 2 |
| 2020 | 0 | 4 |
| 2021 | 6 | 2 |
| 2022 | 0 | 3 |
| 2023 | 1 | 7 |
| 2024 | 5 | 1 |
| 2025 | 2 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Apparatus for cooking using wood pellets62US 7,900,553 B12011
- Combustible particulate fuel heater33US 4,565,184 A1986
- Combustion device for stoves and fireplaces21US 5,113,843 AAlladin Steel Products · 1992
- System and process for production of fuel gas from solid biomass fuel and for combustion of such fuel gas21US 5,823,122 AAlternative Energy Development, Inc. · 1998
- Combustion device for stoves and fireplaces13US 5,341,794 AAladdin Steel Products, Inc. · 1994