F23N 2239/06
Liquid fuels
F23N2239/06 (Liquid fuels) appears on 66 US grants and 28 published applications in this corpus.
Search patents in F23N- Granted patents
- 66
- Published applications
- 28
- Assignees
- 55
- Inventors
- 154
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 4 |
| 2020 | 0 | 2 |
| 2021 | 0 | 3 |
| 2022 | 4 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Atomization burner with flexible fire rate14 Apr 2026US 12,601,481 B2Babington Technology, Inc.
- Radiant heat or thermal based flare efficiency monitoring27 May 2025US 12,313,260 B2Schlumberger Technology Corporation
- Vehicle heater and controls therefor21 Jan 2025US 12,203,436 B2Dometic Marine Canada Inc.
- Atomization burner with flexible fire rate9 Jul 2024US 12,031,721 B2Babington Technology, Inc.
- Combustion system with inferred fuel and associated methods22 Aug 2023US 11,732,891 B2OnPoint Technologies, LLC
- Fireplace Flame-Extinguishing Method and Fireplace8 Jan 2026US 2026/0009542 A1Ningbo Richen Electrical Appliance Co., Ltd
- Atomization burner with flexible fire rate6 Feb 2025US 2025/0043954 A1Babington Technology, Inc.
- Method for controlling heating apparatus19 Dec 2024US 2024/0418410 A1Hephzibah Co., Ltd.
- Radiant heat or thermal based flare efficiency monitoring16 Nov 2023US 2023/0366543 A1Schlumberger Technology Corporation
- Vehicle heater and controls therefor12 Jan 2023US 2023/0009411 A1Marine Canada Acquisition Inc.
Most cited
By later US patents
- Furnace monitoring system97US 4,296,727 AMicro-Burner Systems Corporation · 1981
- Flame ionization control apparatus and method78US 5,971,745 AGas Research Institute · 1999
- Blocked flue detection methods and systems75US 7,255,285 B2Honeywell International Inc. · 2007
- Pulse combustion control system63US 4,080,149 ARobertshaw Controls Company · 1978
- Gas/air ratio control apparatus for a temperature control loop for gas appliances53US 5,630,408 ARanco Incorporated of Delaware · 1997