F23B 5/04
In separate combustion chamber
Official title: {in separate combustion chamber; on separate grate}
F23B5/04 (In separate combustion chamber) appears on 61 US grants and 17 published applications in this corpus.
Search patents in F23B- Granted patents
- 61
- Published applications
- 17
- Assignees
- 21
- Inventors
- 65
- Latest grant
- 25 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 4 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Biomass heating system with optimized flue gas treatment25 Jul 2023US 11,708,999 B2Sl-Technik GmbH
- Rotating grate with a cleaning device for a biomass heating system25 Apr 2023US 11,635,231 B2Sl-Technik GmbH
- Non-bypassable catalyst assisted appliances29 Mar 2022US 11,287,135 B2Jotul AS
- Non-bypassable catalyst assisted appliances29 Sep 2020US 10,788,216 B2Jotul AS
- Internal combustion heating device of coal pyrolyzing furnace30 Jan 2018US 9,879,190 B2Shanxi Xinli Energy Technology Co., Ltd
- Biomass heating system, as well as its components27 Oct 2022US 2022/0341625 A1Sl-Technik GmbH
- Rotating grate with a cleaning device for a biomass heating system20 Oct 2022US 2022/0333770 A1Sl-Technik GmbH
- Biomass heating system with optimized flue gas treatment20 Oct 2022US 2022/0333817 A1Sl-Technik GmbH
- Method for commissioning a biomass heating system20 Oct 2022US 2022/0333822 A1Sl-Technik GmbH
- Non-bypassable catalyst assisted appliances17 Dec 2020US 2020/0393133 A1Jotul AS
Most cited
By later US patents
- Catalytic stove61US 4,319,556 AJamestown Group · 1982
- Partial combustion process for coal56US 4,407,206 AExxon Research & Engineering Co. · 1983
- Chip wood furnace and furnace retrofitting system34US 4,312,278 ABoard of Trustees of the University of Maine · 1982
- Hot gas generation system for producing combustible gases for a burner from particulate solid organic biomass material34US 5,138,957 ABiotherm Energy Systems, Inc. · 1992
- Solid fuel burner32US 4,167,909 A1979