F22B 21/348
Radiation boilers with a burner at the top
Official title: {Radiation boilers with a burner at the top}
F22B21/348 (Radiation boilers with a burner at the top) appears on 6 US grants and 14 published applications in this corpus.
Search patents in F22B- Granted patents
- 6
- Published applications
- 14
- Assignees
- 6
- Inventors
- 33
- Latest grant
- 17 Sep 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 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 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Down-fired high efficiency gas-fired water heater17 Sep 2019US 10,415,849 B2Rheem Manufacturing Company
- Advanced ultra supercritical steam generator23 Jan 2018US 9,874,346 B2The Babcock & Wilcox Company
- Downfired high efficiency gas-fired water heater25 Jul 2017US 9,714,774 B2Rheem Manufacturing Company
- Boiler15 Oct 2013US 8,555,820 B2Miura Co., Ltd.
- Boiler apparatus for combusting processed agriculture residues (PAR) and method5 Oct 2010US 7,806,090 B2
- Plate-shaped heat insulator, combustion chamber, boiler and water heater27 Feb 2025US 2025/0067431 A1Ibiden Co., Ltd.
- Plate-shaped heat insulator, combustion chamber, boiler and water heater18 May 2023US 2023/0151963 A1Ibiden Co., Ltd.
- Down-Fired High Efficiency Gas-Fired Water Heater19 Oct 2017US 2017/0299221 A1Rheem Manufacturing Company
- Advanced ultra supercritical steam generator9 Apr 2015US 2015/0096507 A1The Babcock & Wilcox Company
- Boiler15 Jan 2015US 2015/0013623 A1Miura Co., Ltd.
Most cited
By later US patents
- Water tube boiler5US 5,273,002 AGadelius Sunrod AB · 1993
- Boiler apparatus for combusting processed agriculture residues (PAR) and method4US 7,806,090 B22010
- Down-fired high efficiency gas-fired water heater2US 10,415,849 B2Rheem Manufacturing Company · 2019
- Downfired high efficiency gas-fired water heater2US 9,714,774 B2Rheem Manufacturing Company · 2017