F22B 37/40
Arrangements of partition walls in flues of steam boilers
Official title: Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
F22B37/40 (Arrangements of partition walls in flues of steam boilers) appears on 30 US grants and 22 published applications in this corpus.
Search patents in F22B- Granted patents
- 30
- Published applications
- 22
- Assignees
- 30
- Inventors
- 75
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 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 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Waste thermal energy recovery device2 Dec 2025US 12,487,031 B2
- Steam generator, in particular for ovens12 Aug 2025US 12,385,634 B2I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
- Exhaust gas flow regulator and heat recovery steam generator having same24 Sep 2024US 12,098,659 B2Doosan Enerbility Co., Ltd.
- Economizer22 Aug 2023US 11,732,885 B2
- HRSG with stepped tube restraints2 Feb 2021US 10,907,821 B2General Electric Company
- Flow conditioning device for steam generator19 Jun 2025US 2025/0201431 A1Westinghouse Electric Corp.
- Waste thermal energy recovery device1 May 2025US 2025/0137726 A1
- Steam Separator and Boiling Water Reactor Including Same6 Jun 2024US 2024/0183527 A1Hitachi-GE Nuclear Energy, Ltd.
- Exhaust gas flow regulator and heat recovery steam generator having same15 Feb 2024US 2024/0052761 A1Doosan Enerbility Co., Ltd.
- Steam generator, in particular for ovens6 Oct 2022US 2022/0316699 A1I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini
Most cited
By later US patents
- Boiler tube silencer45US 4,316,435 AGeneral Electric Company · 1982
- Heat exchange apparatus17US 5,318,109 AKabushiki Kaisha Toshiba · 1994
- Boiler15US 4,355,602 ACedar Dunes Investments Ltd. · 1982
- Hot water heater and steam generator11US 4,612,879 A1986
- Method of suppressing formation of heat exchange fluid particles into standing waves9US 4,226,279 AFoster Wheeler Energy Corporation · 1980