F23C 6/045
With staged combustion in a single enclosure
Official title: {with staged combustion in a single enclosure}
F23C6/045 (With staged combustion in a single enclosure) appears on 581 US grants and 413 published applications in this corpus.
Search patents in F23C- Granted patents
- 581
- Published applications
- 413
- Assignees
- 296
- Inventors
- 1,171
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 14 | 0 |
| 1990 | 7 | 0 |
| 1991 | 11 | 0 |
| 1992 | 10 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 22 | 0 |
| 1996 | 13 | 0 |
| 1997 | 19 | 0 |
| 1998 | 23 | 0 |
| 1999 | 24 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 9 |
| 2002 | 12 | 20 |
| 2003 | 13 | 32 |
| 2004 | 24 | 27 |
| 2005 | 24 | 21 |
| 2006 | 9 | 22 |
| 2007 | 10 | 24 |
| 2008 | 12 | 16 |
| 2009 | 16 | 20 |
| 2010 | 16 | 23 |
| 2011 | 7 | 13 |
| 2012 | 10 | 20 |
| 2013 | 18 | 18 |
| 2014 | 18 | 12 |
| 2015 | 11 | 19 |
| 2016 | 9 | 24 |
| 2017 | 19 | 16 |
| 2018 | 13 | 10 |
| 2019 | 16 | 10 |
| 2020 | 10 | 7 |
| 2021 | 6 | 9 |
| 2022 | 7 | 11 |
| 2023 | 9 | 12 |
| 2024 | 9 | 6 |
| 2025 | 5 | 10 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flameless combustion burner for an endothermic reaction process9 Jun 2026US 12,649,135 B2Technip Energies France
- Multi-tube burner system for efficient mixing of fuel and air for combustion31 Mar 2026US 12,590,698 B2Sustainable Business & Engineering Solutions GmbH
- Burner and method for transient heating6 Jan 2026US 12,516,809 B2Air Products and Chemicals, Inc.
- Low NOx gas burner with cooled flue gas recycle4 Nov 2025US 12,460,814 B2Honeywell International Inc.
- Processes and apparatuses for burning a hydrogen fuel and a hydrocarbon fuel26 Aug 2025US 12,398,879 B2Uop LLC
- Method of controlling deflagration combustion process in pistonless combustor30 Apr 2026US 2026/0117975 A1Finno Exergy Oy
- Low nox gas burner with cooled flue gas recycle5 Feb 2026US 2026/0036297 A1Honeywell International Inc.
- Low nox emission burner for firing liquid fuels and method of operation18 Dec 2025US 2025/0383083 A1Honeywell International Inc.
- Low nox emission burner for firing liquid fuels or fuel gas and method of operation18 Dec 2025US 2025/0383088 A1Honeywell International Inc.
- Systems and methods for flameless combustion27 Nov 2025US 2025/0362014 A1Fives North American Combustion, Inc.
Most cited
By later US patents
- Staged combustion of a low heating value fuel gas for driving a gas turbine166US 6,201,029 B1Marathon Oil Company · 2001
- Low NO.sub.x formation burner apparatus and methods152US 5,195,884 AJohn Zink Company, a Division of Koch Engineering Company, Inc. · 1993
- Gas turbine combustor146US 5,836,164 AHitachi, Ltd. · 1998
- Methods and apparatus for burning fuel with low NO.sub.x formation123US 5,098,282 AJohn Zink Company · 1992
- Methods and apparatus for burning fuel with low NO.sub.x formation119US 5,154,596 AJohn Zink Company, a Division of Koch Engineering Company, Inc. · 1992