F22B 31/0015
For boilers of the water tube type
Official title: {for boilers of the water tube type}
F22B31/0015 (For boilers of the water tube type) appears on 157 US grants and 38 published applications in this corpus.
Search patents in F22B- Granted patents
- 157
- Published applications
- 38
- Assignees
- 85
- Inventors
- 285
- Latest grant
- 3 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 8 |
| 2017 | 5 | 2 |
| 2018 | 7 | 4 |
| 2019 | 5 | 2 |
| 2020 | 0 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for operating a fluidized bed boiler3 Oct 2023US 11,774,088 B2Improbed AB
- Fluid sand falling type circulating fluidized bed boiler with a plurality of risers and method of operating the same17 May 2022US 11,333,349 B2Korea Institute of Energy Research
- Solid fuel burning-furnace having a vertically mounted cylindrical combustion chamber25 May 2021US 11,015,800 B2Sullivan, Higgins, and Brion PPE, LLC
- Furnace wall, gasification unit and integrated gasification combined cycle, and method of manufacturing furnace wall23 Mar 2021US 10,954,853 B2Mitsubishi Power, Ltd.
- Assembly and a method of installing an assembly of a particle separator module and a heat exchange chamber module, and a circulating fluidized bed boiler with such an assembly10 Dec 2019US 10,502,411 B2Sumitomo SHI FW Energia Oy
- Heat Exchanger Element and Use Thereof30 Jan 2025US 2025/0035302 A1Andritz Technology and Asset Management GmbH
- Wall for a fluidized bed boiler and a fluidized bed boiler29 Aug 2024US 2024/0288158 A1Valmet Technologies Oy
- Wind-assisted air supply to coal-fired power plants7 Mar 2024US 2024/0077202 A9
- Wind-assisted air supply to coal-fired power plants22 Oct 2020US 2020/0333000 A1
- Method for operating a fluidized bed boiler17 Sep 2020US 2020/0292163 A1Improbed AB
Most cited
By later US patents
- Two stage circulating fluidized bed reactor and method of operating the reactor72US 4,688,521 ADonlee Technologies, Inc. · 1987
- Fluidized bed heat exchanger with water cooled air distributor and dust hopper57US 4,301,771 ADorr-Oliver Incorporated · 1981
- Waste heat recovery53US 4,245,693 APhillips Petroleum Company · 1981
- Pulsed atmospheric fluidized bed combustor apparatus45US 5,255,634 AManufacturing and Technology Conversion International, Inc. · 1993
- Pulsed atmospheric fluidized bed combustor apparatus and process41US 5,133,297 AManufacturing and Technology Conversion International, Inc. · 1992