F23N 2225/21
Outlet temperature
Official title: outlet temperature
F23N2225/21 (Outlet temperature) appears on 41 US grants and 38 published applications in this corpus.
Search patents in F23N- Granted patents
- 41
- Published applications
- 38
- Assignees
- 36
- Inventors
- 115
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 4 |
| 2007 | 1 | 4 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for detecting burner failure6 Jan 2026US 12,517,015 B2ROLLS-ROYCE plc
- Two-stage catalytic heating systems and methods of operating thereof22 Jul 2025US 12,366,356 B2Proof Energy Inc.
- Temperature control system for an air preheater installation29 Apr 2025US 12,287,092 B2Arvos Ljungstrom LLC
- Aircraft operation4 Mar 2025US 12,241,422 B2ROLLS-ROYCE plc
- Correlation deriving method and correlation deriving device7 Jan 2025US 12,188,656 B2IHI Corporation
- Method for detecting burner failure5 Jun 2025US 2025/0180435 A1ROLLS-ROYCE plc
- Combustion boiler control method, combustion boiler, and boiler computation system3 Apr 2025US 2025/0109850 A1Sumitomo SHI FW Energia Oy
- Method of operating a heat releasing reactor, a heat releasing reactor, and a computation system for a heat releasing reactor14 Nov 2024US 2024/0377059 A1Sumitomo SHI FW Energia Oy
- Systems and methods for reducing emissions in gas turbine engines7 Nov 2024US 2024/0369224 A1GE Infrastructure Technology LLC
- Aircraft operation11 Apr 2024US 2024/0117771 A1ROLLS-ROYCE plc
Most cited
By later US patents
- Integrated furnace control and control self test122US 4,872,828 AHamilton Standard Controls, Inc. · 1989
- Real time optimization and control of oxygen enhanced boilers84US 7,401,577 B2American Air Liquide, Inc. · 2008
- Method for controlling fuel splits to gas turbine combustor33US 7,246,002 B2General Electric Company · 2007
- Low nox burner process for boilers31US 5,511,971 A1996
- Process for regulating individual factors or all factors influencing combustion on a furnace grate22US 5,606,924 AMartin GmbH fuer Umwelt- und Energietechnik · 1997