F23N 2227/26
Comprising two or more distinct pilot burners
Official title: comprising two or more distinct pilot burners
F23N2227/26 (Comprising two or more distinct pilot burners) appears on 8 US grants and 10 published applications in this corpus.
Search patents in F23N- Granted patents
- 8
- Published applications
- 10
- Assignees
- 13
- Inventors
- 21
- Latest grant
- 3 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Flare pilot and flare pilot with ignitor assembly3 May 2022US 11,320,143 B2Flaretech Inc.
- Smart fuel burning system and method of operating same24 Sep 2019US 10,422,530 B2Reecon M & E Co. Ltd.
- Dual fuel ignition device and work method thereof as well as safety type dual fuel control system based thereon and control method thereof29 Jan 2019US 10,190,772 B2Zhejiang Fuerj Electric Science and Technology Co. Ltd.
- Method and system for controlling fuel to a dual stage nozzle2 Sep 2014US 8,820,087 B2Siemens Energy, Inc.
- Self diagonostic flame ignitor17 Feb 2009US 7,492,269 B2ALSTOM Technology Ltd
- Smart Fuel Burning System and Method of Operating Same26 Aug 2021US 2021/0262660 A1
- Flare Pilot and Flare Pilot with Ignitor Assembly23 Jan 2020US 2020/0025372 A1Flaretech Inc.
- Smart Fuel Burning System and Method of Operating Same16 Jan 2020US 2020/0018480 A1Reecon M & E Co. Ltd.
- Dual-fuel heater20 Sep 2018US 2018/0266679 A1Copreci, S. Coop.
- Partially transitioned flame start-up of a perforated flame holder19 Jul 2018US 2018/0202653 A1Clearsign Combustion Corporation
Most cited
By later US patents
- Premix oven pulsing control system14US 4,834,644 ASnow Corporation · 1989
- Water heater11US 4,505,253 ARinnai Corporation · 1985
- Automatic fuel ignition system with redundant flame sensing10US 4,087,229 ARobertshaw Controls Company · 1978
- Method and system for controlling fuel to a dual stage nozzle9US 8,820,087 B2Siemens Energy, Inc. · 2014
- Self diagonostic flame ignitor8US 7,492,269 B2ALSTOM Technology Ltd · 2009