F22D 1/12
Control devices
Official title: Control devices, e.g. for regulating steam temperature
F22D1/12 (Control devices) appears on 36 US grants and 27 published applications in this corpus.
Search patents in F22D- Granted patents
- 36
- Published applications
- 27
- Assignees
- 27
- Inventors
- 82
- Latest grant
- 21 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 3 | 4 |
| 2017 | 2 | 2 |
| 2018 | 3 | 4 |
| 2019 | 4 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for enhancing amine agent recovery with a reclaimer21 Nov 2023US 11,819,777 B2Saudi Arabian Oil Company
- Method of efficiency enhancement of fired heaters without air preheat systems31 Oct 2023US 11,802,687 B2Uop LLC
- Exhaust gas cooler17 May 2022US 11,333,348 B2Mitsubishi Heavy Industries Engineering, Ltd.
- Thermal power generation system and control method for same6 Apr 2021US 10,968,783 B2Mitsubishi Power, Ltd.
- Method for operating a waste heat steam generator16 Mar 2021US 10,948,178 B2Siemens Energy Global GmbH & Co. KG
- Method of efficiency enhancement of fired heaters without air preheat systems11 Aug 2022US 2022/0252254 A1Uop LLC
- Exhaust gas cooler18 Feb 2021US 2021/0048187 A1Mitsubishi Heavy Industries Engineering, Ltd.
- Method for operating a waste heat steam generator7 Nov 2019US 2019/0338944 A1Siemens Aktiengesellschaft
- Systems and methods for enhancing amine agent recovery with a reclaimer28 Feb 2019US 2019/0060779 A1Saudi Arabian Oil Company
- Water feeding method, water feeding system implementing said method, and steam generating facility provided with water feeding system20 Dec 2018US 2018/0363557 A1Mitsubishi Hitachi Power Systems, Ltd.
Most cited
By later US patents
- System and methods for controlling a water heater35US 7,290,502 B2Emerson Electric Co. · 2007
- Control system for economic operation of a steam generator27US 4,489,679 ACombustion Engineering, Inc. · 1984
- Economizer19US 4,318,366 AAqua-Chem, Inc. · 1982
- Combined cycle system for optimizing cycle efficiency having varying sulfur content fuels18US 4,354,347 AGeneral Electric Company · 1982
- Systems and methods for controlling a water heater15US 7,647,895 B2Emerson Electric Co. · 2010