F22B 31/0084
With recirculation of separated solids or with cooling of the bed particles
Official title: {with recirculation of separated solids or with cooling of the bed particles outside the combustion bed}
F22B31/0084 (With recirculation of separated solids or with cooling of the bed particles) appears on 237 US grants and 52 published applications in this corpus.
Search patents in F22B- Granted patents
- 237
- Published applications
- 52
- Assignees
- 83
- Inventors
- 316
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 1 | 0 |
| 1987 | 11 | 0 |
| 1988 | 15 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 15 | 0 |
| 1992 | 13 | 0 |
| 1993 | 12 | 0 |
| 1994 | 19 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 3 |
| 2003 | 4 | 1 |
| 2004 | 3 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 2 | 3 |
| 2015 | 3 | 3 |
| 2016 | 5 | 6 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 4 | 1 |
| 2020 | 0 | 5 |
| 2021 | 2 | 5 |
| 2022 | 3 | 1 |
| 2023 | 4 | 0 |
| 2024 | 2 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for heating a heat exchange medium in a fluidized bed boiler, a fluidized bed boiler, and a loopseal heat exchanger30 Dec 2025US 12,510,241 B2Valmet Technologies Oy
- Induced circulation among integrated bubbling zones14 Oct 2025US 12,440,818 B2
- Biomass upgrading system25 Jun 2024US 12,018,835 B2BioShare AB
- Recovery of chemicals from fuel streams2 Jan 2024US 11,859,812 B2BioShare AB
- Heat exchanger for a loopseal of a circulating fluidized bed boiler and a circulating fluidized bed boiler5 Dec 2023US 11,835,298 B2Valmet Technologies Oy
- Bubbling Fluidized Bed Reactor21 Mar 2024US 2024/0093865 A1BioShare AB
- A method for heating a heat exchange medium in a fluidized bed boiler, a fluidized bed boiler, and a loopseal heat exchanger4 Jan 2024US 2024/0003534 A1Valmet Technologies Oy
- Heat exchanger for a loopseal of a circulating fluidized bed boiler and a circulating fluidized bed boiler13 Oct 2022US 2022/0325961 A1Valmet Technologies Oy
- A circulating fluidized bed boiler with a loopseal heat exchanger2 Dec 2021US 2021/0372610 A1Valmet Technologies Oy
- Arrangement for and a method of controlling flow of solid particles and a fluidized bed reactor14 Oct 2021US 2021/0316264 A1Sumitomo SHI FW Energia Oy
Most cited
By later US patents
- Oxygen fired circulating fluidized bed steam generator105US 6,505,567 B1Alstom (Switzerland) Ltd · 2003
- Process for burning carbonaceous materials94US 4,165,717 AMetallgesellschaft Aktiengesellschaft · 1979
- Method and device for controlling the temperature of a reaction carried out in a fluidized bed75US 4,552,203 ACreusot-Loire · 1985
- Two stage circulating fluidized bed reactor and method of operating the reactor72US 4,688,521 ADonlee Technologies, Inc. · 1987
- Integral fluidized bed heat exchanger in an energy producing plant61US 4,716,856 AMetallgesellschaft Aktiengesellschaft · 1988