F22B 21/36
Involving an upper drum or headers mounted at the top of the
Official title: involving an upper drum or headers mounted at the top of the combustion chamber
F22B21/36 (Involving an upper drum or headers mounted at the top of the) appears on 9 US grants and 11 published applications in this corpus.
Search patents in F22B- Granted patents
- 9
- Published applications
- 11
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 25 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Solid fuel burning-furnace having a vertically mounted cylindrical combustion chamber25 May 2021US 11,015,800 B2Sullivan, Higgins, and Brion PPE, LLC
- Solid fuel burning-furnace having a vertically mounted cylindrical combustion chamber26 Feb 2019US 10,215,398 B2
- Power boiler having vertically mounted cylindrical combustion chamber28 Feb 2017US 9,581,326 B2
- Forced-flow steam generator22 Mar 2016US 9,291,344 B2Siemens Aktiengesellschaft
- Boiler15 Oct 2013US 8,555,820 B2Miura Co., Ltd.
- Multi-tube once-through boiler2 Jun 2022US 2022/0170626 A1
- Solid fuel burning-furnace having a vertically mounted cylindrical combustion chamber31 Oct 2019US 2019/0331335 A1Sullivan, Higgins, and Brion PPE, LLC
- Power boiler having vertically mounted cylindrical combustion chamber17 Aug 2017US 2017/0234526 A1
- Power Boiler having Vertically Mounted Cylindrical Combustion Chamber7 Jul 2016US 2016/0195260 A1
- Burner and boiler equipped with burner23 Jun 2016US 2016/0178196 A1
Most cited
By later US patents