F22B 37/146
Tube arrangements for ash hoppers and grates and for combustion chambers of
Official title: {Tube arrangements for ash hoppers and grates and for combustion chambers of the cyclone or similar type out of the flues}
F22B37/146 (Tube arrangements for ash hoppers and grates and for combustion chambers of) appears on 23 US grants and 5 published applications in this corpus.
Search patents in F22B- Granted patents
- 23
- Published applications
- 5
- Assignees
- 10
- Inventors
- 40
- Latest grant
- 26 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Water-tube boiler with concentric heat-exchange coils with ash-removal system26 Oct 2021US 11,156,355 B2
- Advanced ultra supercritical steam generator23 Jan 2018US 9,874,346 B2The Babcock & Wilcox Company
- System for producing energy at a pulp mill16 Feb 2010US 7,661,376 B2Andritz Inc.
- Continuous steam generator14 Apr 2009US 7,516,719 B2Siemens Aktiengesellschaft
- Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels21 Sep 2004US 6,793,013 B2Foster Wheeler Energy Corporation
- Water-Tube Boiler with Concentric Heat-Exchange Coils with Ash-Removal System5 Aug 2021US 2021/0239312 A1
- Advanced ultra supercritical steam generator9 Apr 2015US 2015/0096507 A1The Babcock & Wilcox Company
- Continuous steam generator28 Jun 2007US 2007/0144456 A1Siemens Aktiengesellschaft
- System for producing energy at a pulp mill17 Nov 2005US 2005/0252458 A1Andritz Inc.
- Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels15 Jul 2004US 2004/0134644 A1Foster Wheeler Energy Corporation
Most cited
By later US patents
- Fluidized bed heat exchanger with water cooled air distributor and dust hopper57US 4,301,771 ADorr-Oliver Incorporated · 1981
- Heat exchanger8US 4,576,120 ASulzer Brothers Limited · 1986
- Water-cooled cyclone separator8US 5,226,936 AFoster Wheeler Energy Corporation · 1993
- Heat exchanger having a vertical gas flue7US 4,537,156 ASulzer Brothers Limited · 1985
- Self-cleaning liner4US 4,545,330 ACool Water Coal Gasification Program · 1985