F22B 31/0046
For boilers of the shell type
Official title: {for boilers of the shell type, e.g. with furnace box}
F22B31/0046 (For boilers of the shell type) appears on 25 US grants and 2 published applications in this corpus.
Search patents in F22B- Granted patents
- 25
- Published applications
- 2
- Assignees
- 19
- Inventors
- 33
- Latest grant
- 30 Aug 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluidized bed process for SO.sub.x removal30 Aug 1994US 5,342,594 ARauma-Repola Oy
- Circulating fluidized bed reactor15 Dec 1992US 5,171,542 AA. Ahlstrom Corporation
- Device for extracting particulate materials of a fluidized bed from the fluidization enclosure1 Sep 1992US 5,143,697 ACharbonnages de France
- Process and apparatus for incinerating wet refuse30 Apr 1991US 5,010,830 AUbe Industries, Ltd.
- Means and method for controlling load turndown in a fluidized bed combustor20 Feb 1990US 4,901,675 AIowa State University Research Foundation, Inc.
Most cited
By later US patents
- Circulating fluidized bed boiler33US 4,273,073 ADeborah Fluidised Combustion Limited · 1981
- Fast fluidized bed reactor and method of operating the reactor33US 4,457,289 AYork-Shipley, Inc. · 1984
- Disposal of waste products by combustion32US 4,270,468 ADeborah Fluidised Combustion Limited · 1981
- Circulating fluidized bed boiler19US 4,267,801 ADeborah Fluidised Combustion Limited · 1981
- Feed of material to fluidized beds17US 4,279,222 AFlameless Furnaces Limited · 1981