F23C 1/00
Combustion apparatus specially adapted for combustion of two or more kinds of
Official title: Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in {a carrier gas or} air (combustion apparatus characterized by the combination of two or more combustion chambers F23C6/00; pilot flame igniters F23Q9/00)
F23C1/00 (Combustion apparatus specially adapted for combustion of two or more kinds of) appears on 248 US grants and 235 published applications in this corpus.
Search patents in F23C- Granted patents
- 248
- Published applications
- 235
- Assignees
- 167
- Inventors
- 554
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 8 |
| 2008 | 1 | 6 |
| 2009 | 3 | 6 |
| 2010 | 5 | 12 |
| 2011 | 7 | 7 |
| 2012 | 9 | 9 |
| 2013 | 5 | 17 |
| 2014 | 7 | 22 |
| 2015 | 13 | 9 |
| 2016 | 11 | 19 |
| 2017 | 11 | 16 |
| 2018 | 9 | 9 |
| 2019 | 12 | 13 |
| 2020 | 7 | 4 |
| 2021 | 9 | 6 |
| 2022 | 8 | 7 |
| 2023 | 9 | 18 |
| 2024 | 4 | 14 |
| 2025 | 8 | 17 |
| 2026 | 10 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Arrangement handling purged alcohol-based fuel and a method thereof8 Sep 2026US 12,729,853 B2Alfa Laval Corporate AB
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Metal curing ovens with quick heat-up and cool-down, and processes of using same14 Jul 2026US 12,678,823 B2EPCON Industrial Services, LP
- Combustion device and boiler14 Jul 2026US 12,680,692 B2IHI Corporation
- Burner and process for burning a hydrogen-containing fuel9 Jun 2026US 12,650,223 B2Messer Austria GmbH
- Device for producing a hydrogen - gaseous hydrocarbon mixture3 Sep 2026US 2026/0258948 A1Suntec Industries France
- Method of heating a steel semi-product in a heating furnace, and associated heating furnace3 Sep 2026US 2026/0259005 A1
- Burner assembly and method for operating a burner assembly13 Aug 2026US 2026/0235285 A1Messer Austria GmbH
- Burner and method of operation6 Aug 2026US 2026/0227063 A1Air Products and Chemicals, Inc.
- Combustion method using fuel combustion device, cement manufacturing method, and cement firing facility30 Apr 2026US 2026/0117967 A1Sumitomo Osaka Cement Co., Ltd.
Most cited
By later US patents
- Methods and apparatus for a combustion turbine fuel recirculation system and nitrogen purge system173US 7,721,521 B2General Electric Company · 2010
- Method and apparatus for burning pelletized organic fibrous fuel74US 4,249,471 A1981
- Cement, reduced-carbon ash and controlled mineral formation using sub- and supercritical high-velocity free-jet expansion into fuel-fired combustor fireballs72US 6,240,859 B1Four Corners Group, Inc. · 2001
- Dual fuel heater68US 7,607,426 B22009
- Method and means for exploiting fuel having high sulfur content66US 5,571,490 AOrmat, Inc. · 1996