F23C 7/02
Disposition of air supply not passing through burner
Official title: Disposition of air supply not passing through burner (to obtain a cyclonic tapering flame when burning pulverulent fuel F23C5/32)
F23C7/02 (Disposition of air supply not passing through burner) appears on 289 US grants and 146 published applications in this corpus.
Search patents in F23C- Granted patents
- 289
- Published applications
- 146
- Assignees
- 190
- Inventors
- 665
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 13 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 15 | 0 |
| 1999 | 4 | 0 |
| 2000 | 17 | 0 |
| 2001 | 11 | 1 |
| 2002 | 7 | 3 |
| 2003 | 2 | 4 |
| 2004 | 1 | 3 |
| 2005 | 6 | 5 |
| 2006 | 1 | 4 |
| 2007 | 1 | 9 |
| 2008 | 2 | 6 |
| 2009 | 2 | 11 |
| 2010 | 5 | 9 |
| 2011 | 3 | 3 |
| 2012 | 2 | 10 |
| 2013 | 1 | 6 |
| 2014 | 5 | 7 |
| 2015 | 2 | 10 |
| 2016 | 7 | 9 |
| 2017 | 11 | 2 |
| 2018 | 4 | 6 |
| 2019 | 2 | 5 |
| 2020 | 7 | 5 |
| 2021 | 4 | 3 |
| 2022 | 6 | 7 |
| 2023 | 5 | 7 |
| 2024 | 3 | 4 |
| 2025 | 5 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas turbine engines and methods associated therewith28 Jul 2026US 12,692,792 B2General Electric Company
- Low NOx, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system8 Jul 2025US 12,352,433 B2Saint-Gobain Ceramics & Plastics, Inc.
- Regenerative burner system and method of use3 Jun 2025US 12,320,521 B2Fives North American Combustion, Inc.
- Temperature control system for an air preheater installation29 Apr 2025US 12,287,092 B2Arvos Ljungstrom LLC
- Combustion systems including heat modules, and associated devices and methods18 Mar 2025US 12,253,259 B2Modern Hydrogen, Inc.
- System and method for optimizing combustion in a boiler30 Apr 2026US 2026/0117968 A1General Electric Technology GmbH
- Recuperative burner19 Mar 2026US 2026/0078899 A1Kueppers Solutions GmbH
- Hybrid electric and fired heater for olefin production12 Mar 2026US 2026/0071128 A1Lummus Technology Inc.
- Low nox, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system23 Oct 2025US 2025/0327568 A1Saint-Gobain Ceramics & Plastics, Inc.
- Combustion systems including heat modules, and associated devices and methods12 Jun 2025US 2025/0189120 A1Modern Hydrogen, Inc.
Most cited
By later US patents
- Apparatus for manufacturing a process abatement reactor386US 7,736,600 B2APPLIED Materials.Inc. · 2010
- Gas turbine fuel injector115US 6,289,677 B1Pratt & Whitney Canada Corp. · 2001
- Combustor for gas- or liquid-fueled turbine108US 6,209,325 B1European Gas Turbines Limited · 2001
- Low NO.sub.x premix burner96US 4,629,413 AExxon Research & Engineering Co. · 1986
- Combustion process and apparatus therefore containing separate injection of fuel and oxidant streams96US 5,975,886 AAmerican Air Liquide, Inc. · 1999