F22G 7/14
In water-tube boilers
Official title: in water-tube boilers, e.g. between banks of water tubes
F22G7/14 (In water-tube boilers) appears on 29 US grants and 19 published applications in this corpus.
Search patents in F22G- Granted patents
- 29
- Published applications
- 19
- Assignees
- 21
- Inventors
- 72
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 2 | 3 |
| 2019 | 4 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Natural circulation multi-circulation package boiler with superheat for steam assisted gravity drainage (SAGD) process including superheat16 Aug 2022US 11,415,314 B2The Babcock & Wilcox Company
- Heat recovery surfaces arrangement in a recovery boiler31 Aug 2021US 11,105,499 B2Andritz Inc.
- Boiler and modifying method thereof25 May 2021US 11,015,801 B2General Electric Company
- Arrangement of heat recovery surfaces of a recovery boiler10 Dec 2019US 10,502,410 B2Andritz Inc.
- Method and device for producing superheated steam by means of the heat produced in the boiler of an incineration plant16 Apr 2019US 10,260,740 B2Hitachi Zosen Inova AG
- Natural circulation multi-circulation package boiler with superheat for steam assisted gravity drainage (sagd) process including superheat24 Dec 2020US 2020/0400305 A1The Babcock & Wilcox Company
- Steam Superheater11 Jul 2019US 2019/0214158 A1Public Joint-Stock Company “Machine-Building Plant”Zio-Podolsk
- Arrangement of heat recovery surfaces of a recovery boiler14 Mar 2019US 2019/0078773 A1Andritz Inc.
- Boiler and modifying method thereof15 Nov 2018US 2018/0328583 A1General Electric Company
- Heat recovery surfaces arrangement in a recovery boiler1 Nov 2018US 2018/0313531 A1Andritz Inc.
Most cited
By later US patents
- Panel of vapor generating and superheating tubes48US 4,512,336 AThe Babcock & Wilcox Company · 1985
- Reheat type waste heat recovery boiler and power generation plant21US 4,858,562 AHitachi, Ltd. · 1989
- Method for upgrading a boiler16US 6,178,924 B2Kvaerner Pulping AB · 2001
- Steam generator having a superheater tube bank13US 4,418,652 ASulzer Brothers Limited · 1983
- Single drum all-welded boiler13US 4,442,800 AThe Babcock & Wilcox Company · 1984