F23D 11/446
Heated by an auxiliary flame
Official title: {heated by an auxiliary flame}
F23D11/446 (Heated by an auxiliary flame) appears on 27 US grants and 29 published applications in this corpus.
Search patents in F23D- Granted patents
- 27
- Published applications
- 29
- Assignees
- 19
- Inventors
- 54
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 3 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 11 |
| 2016 | 5 | 0 |
| 2017 | 2 | 1 |
| 2018 | 4 | 1 |
| 2019 | 2 | 4 |
| 2020 | 1 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Atomization burner with flexible fire rate24 Oct 2023US 11,796,171 B2Babington Technology, Inc.
- Combustion system with perforated flame holder and swirl stabilized preheating flame16 Aug 2022US 11,415,316 B2ClearSign Technologies Cosporation
- Igniter for gas turbine engine8 Mar 2022US 11,268,486 B2Pratt & Whitney Canada Corp.
- Fuel combustion system with a perforated reaction holder26 Oct 2021US 11,156,356 B2Clearsign Technologies Corporation
- Atomization burner with flexible fire rate31 Aug 2021US 11,105,504 B2Babington Technology, Inc.
- Atomization burner with flexible fire rate18 Nov 2021US 2021/0356121 A1Babington Technology, Inc.
- Igniter for gas turbine engine12 Mar 2020US 2020/0080529 A1Pratt & Whitney Canada Corp.
- Igniter for gas turbine engine12 Mar 2020US 2020/0080530 A1Pratt & Whitney Canada Corp.
- Combustion system with perforated flame holder and swirl stablized preheating flame20 Feb 2020US 2020/0056781 A1Clearsign Combustion Corporation
- Fuel combustion system with a perforated reaction holder12 Sep 2019US 2019/0277492 A1Clearsign Combustion Corporation
Most cited
By later US patents
- Burner with a perforated flame holder and pre-heat apparatus52US 9,377,190 B2Clearsign Combustion Corporation · 2016
- Method for flame location transition from a start-up location to a perforated flame holder49US 9,388,981 B2Clearsign Combustion Corporation · 2016
- Burner with a perforated reaction holder and heating apparatus29US 9,447,965 B2Clearsign Comubstion Corporation · 2016
- Two-circuit injector for a turbine engine combustion chamber14US 9,927,125 B2Turbomeca · 2018
- Burner with a series of fuel gas ejectors and a perforated flame holder12US 9,562,682 B2Clearsign Combustion Corporation · 2017