F23L 2900/00
Special arrangements for supplying or treating air or oxidant for combustion
Official title: Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
F23L2900/00 (Special arrangements for supplying or treating air or oxidant for combustion) appears on 640 US grants and 614 published applications in this corpus.
Search patents in F23L- Granted patents
- 640
- Published applications
- 614
- Assignees
- 368
- Inventors
- 1,517
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 11 | 0 |
| 1994 | 13 | 0 |
| 1995 | 16 | 0 |
| 1996 | 8 | 0 |
| 1997 | 15 | 0 |
| 1998 | 17 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 32 | 8 |
| 2002 | 19 | 29 |
| 2003 | 17 | 25 |
| 2004 | 26 | 26 |
| 2005 | 21 | 22 |
| 2006 | 13 | 27 |
| 2007 | 7 | 17 |
| 2008 | 5 | 23 |
| 2009 | 9 | 33 |
| 2010 | 16 | 48 |
| 2011 | 24 | 37 |
| 2012 | 19 | 47 |
| 2013 | 31 | 37 |
| 2014 | 17 | 35 |
| 2015 | 30 | 19 |
| 2016 | 28 | 20 |
| 2017 | 19 | 12 |
| 2018 | 21 | 20 |
| 2019 | 19 | 13 |
| 2020 | 13 | 20 |
| 2021 | 11 | 17 |
| 2022 | 17 | 23 |
| 2023 | 13 | 16 |
| 2024 | 13 | 15 |
| 2025 | 16 | 18 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23L 2900/07005Injecting pure oxygen or oxygen enriched airIndexing code162
- F23L 2900/07001Injecting synthetic air, i.e. a combustion supporting mixture made of pure oxygenIndexing code149
- F23L 2900/07002Injecting inert gas, other than steam or evaporated water, into the combustionIndexing code129
- F23L 2900/07007Special arrangements for supplying or treating air or oxidant for combustion: usingIndexing code94
- F23L 2900/07006Control of the oxygen supplyIndexing code79
- F23L 2900/07009Injection of steam into the combustion chamberIndexing code62
- F23L 2900/07008Injection of water into the combustion chamberIndexing code61
- F23L 2900/07003Controlling the inert gas supplyIndexing code42
All 17 subgroupsShow fewer
- F23L 2900/00001Treating oxidant before combustionIndexing code29
- F23L 2900/15043Preheating combustion air by heat recovery means located in the chimneyIndexing code27
- F23L 2900/07004Injecting liquid or solid materials releasing oxygenIndexing code19
- F23L 2900/15042Preheating combustion air by auxiliary combustionIndexing code16
- F23L 2900/05021Gas turbine driven blowers for supplying combustion air or oxidant, i.e. turbochargersIndexing code10
- F23L 2900/15021Special arrangements for supplying or treating air or oxidant for combustion: usingIndexing code10
- F23L 2900/15041Preheating combustion air by recuperating heat from ashesIndexing code9
- F23L 2900/15022Special arrangements for supplying or treating air or oxidant for combustion: usingIndexing code6
- F23L 2900/15044Preheating combustion air by heat recovery means using solar or other cleanIndexing code5
Recent patents
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions25 Aug 2026US 12,716,650 B2Saipem S.P.A.
- Gaseous fuel and liquid water injection for turbine engine14 Jul 2026US 12,680,497 B2Rtx Corporation
- Method of evaluating the inerting concentration of an aerosol fire suppression agent9 Jun 2026US 12,649,077 B2Kidde Technologies, Inc.
- Monitoring combustible matter in a gaseous stream2 Jun 2026US 12,644,599 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Glass melting process with low co2 emission20 Aug 2026US 2026/0242269 A1Agc Glass Europe
- Burner assembly and method for operating a burner assembly13 Aug 2026US 2026/0235285 A1Messer Austria GmbH
- Combustion system capable of operating with a recycling of combustion fumes30 Jul 2026US 2026/0218900 A1Carbodown
- Method for reducing nitrogen oxide emission and combustion system16 Jul 2026US 2026/0202054 A1China Petroleum & Chemical Corporation
- Combustion system comprising an annular shroud burner5 Feb 2026US 2026/0036299 A1Jupiter Oxygen Corporation
Most cited
By later US patents
- Apparatus and method for controlled combustion of gaseous pollutants388US 7,569,193 B2APPLIED Materials.Inc. · 2009
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- Combustion method and apparatus for producing a carbon dioxide end product164US 6,202,574 B1ABB Alstom Power Inc. · 2001
- Oxidant control in co-generation installations151US 6,247,315 B1American Air Liquids, Inc. · 2001
- Process for generating power including a combustion process142US 6,298,664 B1Norsk Hydro ASA · 2001