F23Q 9/10
To determine the sequence of supply of fuel to pilot and main
Official title: to determine the sequence of supply of fuel to pilot and main burners
F23Q9/10 (To determine the sequence of supply of fuel to pilot and main) appears on 9 US grants and 5 published applications in this corpus.
Search patents in F23Q- Granted patents
- 9
- Published applications
- 5
- Assignees
- 9
- Inventors
- 14
- Latest grant
- 17 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Dual fuel direct ignition burners17 Jan 2023US 11,555,612 B2Babcock Power Services, Inc.
- Control valves for heaters and fireplace devices7 Mar 2017US 9,587,830 B2
- Control valves for heaters and fireplace devices4 Aug 2015US 9,097,422 B2Procom Heating, Inc.
- Control valves for heaters and fireplace devices27 Nov 2012US 8,317,511 B2Continental Appliances, Inc.
- Control valves for heaters and fireplace devices2 Feb 2010US 7,654,820 B2
- Dual fuel direct ignition burners30 May 2019US 2019/0162410 A1Riley Power, Inc.
- Control valves for heaters and fireplace devices5 May 2016US 2016/0123589 A1Procom Heating, Inc.
- Control valves for heaters and fireplace devices15 Aug 2013US 2013/0209944 A1Continental Appliances, Inc. D.B.A. Procom
- Control valves for heaters and fireplace devices2 Dec 2010US 2010/0304317 A1Continental Appliances, Inc.
- Control valves for heaters and fireplace devices26 Jun 2008US 2008/0153044 A1
Most cited
By later US patents
- Control valves for heaters and fireplace devices57US 7,654,820 B22010
- Control valves for heaters and fireplace devices20US 8,317,511 B2Continental Appliances, Inc. · 2012
- Combination control with high/low pilot gas flow16US 4,413,975 AEssex Group, Inc. · 1983
- Fuel ignition control arrangement employing dual flame sensors10US 4,197,082 AJohnson Controls GmbH · 1980
- Intermittent pilot ignition system8US 4,194,875 ACam-Stat Incorporated · 1980