F22B 29/04
Steam boilers of forced-flow type: of combined-circulation type, i.e. in which convection
Official title: of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily
F22B29/04 (Steam boilers of forced-flow type: of combined-circulation type, i.e. in which convection) appears on 7 US grants and 5 published applications in this corpus.
Search patents in F22B- Granted patents
- 7
- Published applications
- 5
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Steam generator with hybrid circulation17 Jul 2007US 7,243,618 B2
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- System and methods for integration of concentrated solar steam generators to rankine cycle power plants20 Feb 2020US 2020/0056778 A1
- Method and system for gas initiated natural circulation vertical heat recovery steam generator27 Oct 2016US 2016/0312997 A1General Electric Technology GmbH
- Circulation system for sliding pressure steam generator13 Dec 2007US 2007/0283906 A1Babcock & Wilcox Power Generation Group, Inc.
- Steam generator with hybrid circulation19 Apr 2007US 2007/0084418 A1
Most cited
By later US patents
- Steam generator with hybrid circulation43US 7,243,618 B22007
- Heat recovery boiler with induced circulation19US 5,575,244 ACockerill Mechanical Industries · 1996
- Vertical drum-type boiler with enhanced circulation15US 5,762,031 A1998
- Circulation system for sliding pressure steam generator1US 7,587,996 B2Babcock & Wilcox Power Generation Group, Inc. · 2009