F23G 2203/50
Fluidised bed furnace
F23G2203/50 (Fluidised bed furnace) appears on 113 US grants and 79 published applications in this corpus.
Search patents in F23G- Granted patents
- 113
- Published applications
- 79
- Assignees
- 97
- Inventors
- 307
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 6 |
| 2009 | 3 | 0 |
| 2010 | 2 | 4 |
| 2011 | 3 | 5 |
| 2012 | 1 | 5 |
| 2013 | 6 | 7 |
| 2014 | 3 | 4 |
| 2015 | 3 | 5 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 3 | 3 |
| 2019 | 5 | 3 |
| 2020 | 2 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 0 | 6 |
| 2024 | 1 | 0 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23G 2203/501With external recirculation of entrained bed materialIndexing code50
- F23G 2203/503With two or more fluidised bedsIndexing code27
- F23G 2203/502With recirculation of bed material inside combustion chamberIndexing code20
- F23G 2203/504With essentially horizontal flow of bed materialIndexing code4
- F23G 2203/505With fluidised bed rotated as a wholeIndexing code0
Recent patents
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Method of preventing blockage of circulating bed material in a circulating fluidized bed reactor arrangement30 Dec 2025US 12,510,244 B2Sumitomo SHI FW Energia Oy
- Method and furnace for incinerating organic matter derived from the treatment of industrial or agricultural waste or wastewater, such as sludge11 Nov 2025US 12,467,626 B2Suez International
- System and method for pyrolysing organic waste11 Feb 2025US 12,224,076 B2Asx Investments B.V.
- System and method for biomass combustion14 May 2024US 11,982,442 B2Morgan State University
- Method and apparatus for cleaning gasification product and use30 Jul 2026US 2026/0218073 A1
- Method for processing meat-and-bone meal28 Aug 2025US 2025/0270458 A1LuíS Leal & Filhos S.A.
- Continuous Char Separation Reactor6 Mar 2025US 2025/0075902 A1BioShare AB
- Method and device for recycling waste materials containing valuable metals14 Sep 2023US 2023/0285920 A1
- Fluid bed regenerative thermal oxidizer and a method for its use31 Aug 2023US 2023/0272908 A1
Most cited
By later US patents
- Apparatus and process for the pyrolysis of agricultural biomass113US 7,943,014 B2Agri-Therm Limited · 2011
- Method and device for controlling the temperature of a reaction carried out in a fluidized bed75US 4,552,203 ACreusot-Loire · 1985
- Fluidized bed reactor system69US 4,311,670 AA. Ahlstrom Osakeyhtio · 1982
- Method of operating a spent pulping liquor combustion apparatus43US 4,522,685 AInternational Paper Company · 1985
- Organic waste fuel combustion system integrated with a gas turbine combined cycle41US 4,957,049 AElectrodyne Research Corporation · 1990