F23C 6/047
With fuel supply in stages
Official title: {with fuel supply in stages}
F23C6/047 (With fuel supply in stages) appears on 283 US grants and 214 published applications in this corpus.
Search patents in F23C- Granted patents
- 283
- Published applications
- 214
- Assignees
- 168
- Inventors
- 650
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 7 |
| 2002 | 9 | 13 |
| 2003 | 9 | 11 |
| 2004 | 17 | 7 |
| 2005 | 3 | 7 |
| 2006 | 1 | 9 |
| 2007 | 4 | 12 |
| 2008 | 6 | 10 |
| 2009 | 6 | 10 |
| 2010 | 10 | 11 |
| 2011 | 4 | 7 |
| 2012 | 5 | 8 |
| 2013 | 13 | 10 |
| 2014 | 10 | 8 |
| 2015 | 5 | 9 |
| 2016 | 3 | 13 |
| 2017 | 9 | 6 |
| 2018 | 7 | 8 |
| 2019 | 5 | 8 |
| 2020 | 6 | 5 |
| 2021 | 4 | 5 |
| 2022 | 4 | 8 |
| 2023 | 5 | 7 |
| 2024 | 5 | 5 |
| 2025 | 4 | 8 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Cylindrical burner apparatus and method15 Jul 2025US 12,359,803 B2Gastech Engineering 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.
- Systems and methods for flameless combustion27 Nov 2025US 2025/0362014 A1Fives North American Combustion, Inc.
- Methods for providing enhanced staged oxygen control oxygen combustion and devices thereof24 Jul 2025US 2025/0237379 A1Selas Heat Technology Company LLC
- Combustion systems including heat modules, and associated devices and methods12 Jun 2025US 2025/0189120 A1Modern Hydrogen, 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