F23Q 9/04
For upright burners
Official title: for upright burners, e.g. gas-cooker burners
F23Q9/04 (For upright burners) appears on 58 US grants and 43 published applications in this corpus.
Search patents in F23Q- Granted patents
- 58
- Published applications
- 43
- Assignees
- 42
- Inventors
- 93
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 4 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 3 | 5 |
| 2012 | 3 | 8 |
| 2013 | 2 | 2 |
| 2014 | 3 | 1 |
| 2015 | 2 | 3 |
| 2016 | 4 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Automatically igniting gas flares18 Nov 2025US 12,474,049 B2Saudi Arabian Oil Company
- Flare pilot and flare pilot with ignitor assembly3 May 2022US 11,320,143 B2Flaretech Inc.
- Automatic pilot lighting systems24 Aug 2021US 11,098,898 B2Emerson Electric Co.
- Ignition device of burner15 Oct 2019US 10,443,844 B2Kovea Co., Ltd.
- System for triggering bank and equipment bill destruction devices and methodology for triggering bank equipment bill destruction devices25 Jun 2019US 10,332,359 B2Tecnologia Bancaria S.A.
- Automatically Igniting Gas Flares27 Jun 2024US 2024/0210033 A1Saudi Arabian Oil Company
- Spark system for igniters22 Sep 2022US 2022/0302683 A1Saudi Arabian Oil Company
- Automatic Pilot Lighting Systems2 Apr 2020US 2020/0103110 A1Emerson Electric Co.
- Flare Pilot and Flare Pilot with Ignitor Assembly23 Jan 2020US 2020/0025372 A1Flaretech Inc.
- System for triggering bank and equipment bill destruction devices and methodology for triggering bank equipment bill destruction devices19 Apr 2018US 2018/0108222 A1Tecnologia Bancaria S.A.
Most cited
By later US patents
- Dual fuel heater68US 7,607,426 B22009
- Apparatus for controlling the supply of gas to and heat from unvented gas heating appliances54US 5,674,065 AOP S.r.l. · 1997
- Heater configured to operate with a first or second fuel49US 7,677,236 B22010
- Dual fuel heater43US 7,967,006 B22011
- Heater configured to operate with a first or second fuel42US 7,967,007 B22011