F22D 1/40
Combinations of exhaust-steam and smoke-gas preheaters
F22D1/40 (Combinations of exhaust-steam and smoke-gas preheaters) appears on 9 US grants and 6 published applications in this corpus.
Search patents in F22D- Granted patents
- 9
- Published applications
- 6
- Assignees
- 7
- Inventors
- 14
- Latest grant
- 13 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Gas turbine and pressurized water reactor steam turbine combined circulation system13 Aug 2019US 10,378,389 B2
- Heat recovery system and method17 Feb 2015US 8,955,466 B2Doosan Babcock Energy America LLC
- Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control4 Oct 2005US 6,951,106 B2Fortum Oyj
- Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control9 Nov 2004US 6,813,888 B2Fortum Oyj
- Steam power plant for generating electric power18 Nov 1997US 5,687,674 ASaarbergwerke Aktiengesellschaft
- Gas turbine and pressurized water reactor steam turbine combined circulation system6 Jun 2019US 2019/0170020 A1
- Direct steam generation co2 output control6 Mar 2014US 2014/0060825 A1ConocoPhillips Company
- Coal-Fired Power Plant, and Method for Operating Coal-Fired Power Plant27 Dec 2012US 2012/0324893 A1Hitachi, Ltd.
- Heat Recovery System and Method26 Aug 2010US 2010/0212610 A1Doosan Babcock Energy America LLC
- Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control27 May 2004US 2004/0098987 A1Fortum Oyj
Most cited
By later US patents
- Dual fuel, pressure combined cycle38US 4,841,722 AGeneral Electric Company · 1989
- Steam power plant for generating electric power11US 5,687,674 ASaarbergwerke Aktiengesellschaft · 1997
- Procedure for improving the efficiency of a steam power plant process10US 4,976,107 A1990
- Integrated fuel cleaning and power generation8US 4,686,832 A1987
- Process and device for recovery of thermal energy in a steam generating system6US 4,617,878 AEngetra S.A. · 1986