F22G 5/06
Controlling superheat temperature: by recirculating flue gases
Official title: by recirculating flue gases
F22G5/06 (Controlling superheat temperature: by recirculating flue gases) appears on 7 US grants and 4 published applications in this corpus.
Search patents in F22G- Granted patents
- 7
- Published applications
- 4
- Assignees
- 6
- Inventors
- 13
- Latest grant
- 31 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant31 Oct 2023US 11,802,688 B2Mitsubishi Heavy Industries, Ltd.
- Advanced ultra supercritical steam generator23 Jan 2018US 9,874,346 B2The Babcock & Wilcox Company
- Superheated steam recycling apparatus and method for using same18 Jul 2017US 9,709,262 B2Tokuden Co., Ltd.
- Apparatus for introducing gas recirculation to control steam temperature in steam generation systems24 Mar 1998US 5,730,070 ACombustion Engineering, Inc.
- Steam generator with gas recirculation to the ash hopper region of the furnace22 Jan 1985US 4,494,468 ACombustion Engineering, Inc.
- Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant13 Aug 2020US 2020/0256218 A1Mitsubishi Hitachi Power Systems, Ltd.
- Superheated steam recycling apparatus and method for using same1 Oct 2015US 2015/0276210 A1Tokuden Co., Ltd.
- Advanced ultra supercritical steam generator9 Apr 2015US 2015/0096507 A1The Babcock & Wilcox Company
- Practical method for improving the efficiency of cogeneration system7 Dec 2006US 2006/0272334 A1
Most cited
By later US patents
- Gas recirculation apparatus with integral ash hoppers15US 4,286,548 A1981
- Waste heat steam generator14US 4,136,643 ASulzer Brothers Limited · 1979
- Steam generator with gas recirculation to the ash hopper region of the furnace3US 4,494,468 ACombustion Engineering, Inc. · 1985
- Apparatus for introducing gas recirculation to control steam temperature in steam generation systems2US 5,730,070 ACombustion Engineering, Inc. · 1998