F23C 2201/10
Furnace staging
F23C2201/10 (Furnace staging) appears on 152 US grants and 128 published applications in this corpus.
Search patents in F23C- Granted patents
- 152
- Published applications
- 128
- Assignees
- 92
- Inventors
- 363
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 1 |
| 2002 | 6 | 7 |
| 2003 | 3 | 5 |
| 2004 | 8 | 11 |
| 2005 | 4 | 7 |
| 2006 | 2 | 8 |
| 2007 | 2 | 6 |
| 2008 | 7 | 9 |
| 2009 | 6 | 7 |
| 2010 | 6 | 6 |
| 2011 | 4 | 7 |
| 2012 | 4 | 8 |
| 2013 | 3 | 6 |
| 2014 | 3 | 5 |
| 2015 | 2 | 5 |
| 2016 | 1 | 6 |
| 2017 | 2 | 3 |
| 2018 | 6 | 3 |
| 2019 | 6 | 5 |
| 2020 | 5 | 2 |
| 2021 | 2 | 0 |
| 2022 | 2 | 4 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combustion device and boiler2 Jun 2026US 12,644,597 B2IHI Corporation
- Apparatus, system and method for pyrolysing and combusting a material24 Jun 2025US 12,338,994 B2Eco-Global Energy Pty Limited
- Velocity damper for a recovery boiler8 Aug 2023US 11,719,433 B2Andritz Inc.
- Solid fuel burner and combustion device31 May 2022US 11,346,546 B2Mitsubishi Power, Ltd.
- Velocity damper for a recovery boiler18 Jan 2022US 11,226,095 B2Andritz Inc.
- Combustion system using oxygen and hydrogen27 Mar 2025US 2025/0102140 A1Great Southern Flameless, LLC
- Combustion device30 Jan 2025US 2025/0035303 A1Lepaier Global Co., Ltd.
- Heater with remote combustion air addition23 Jan 2025US 2025/0027643 A1Lummus Technology Inc.
- Biomass Fuel Burning Furnace12 Dec 2024US 2024/0410569 A1Zhongshan Junwei Home Appliances Co., Ltd.
- Combustion apparatus, combustion system, and combustion method5 Dec 2024US 2024/0401799 A1Combustion Consulting Italy S.R.L.
Most cited
By later US patents
- Method and system for reducing NO.sub.x and fuel emissions in a furnace149US 5,759,022 AGas Research Institute · 1998
- Combustion process for reducing nitrogen oxides99US 4,403,941 ABabcock-Hitachi Kabushiki Kaisha · 1983
- Method for reducing the production of NOX in a gas turbine85US 5,974,780 A1999
- Low NOx combustor for gas turbine engine64US 6,240,731 B1United Technologies Corporation · 2001
- Low-NO.sub.x staged combustion device for controlled radiative heating in high temperature furnaces63US 5,611,682 AAir Products and Chemicals, Inc. · 1997