F23N 2241/00
Applications
F23N2241/00 (Applications) appears on 993 US grants and 968 published applications in this corpus.
Search patents in F23N- Granted patents
- 993
- Published applications
- 968
- Assignees
- 442
- Inventors
- 2,171
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 16 | 2 |
| 2002 | 21 | 24 |
| 2003 | 22 | 17 |
| 2004 | 20 | 25 |
| 2005 | 15 | 34 |
| 2006 | 21 | 33 |
| 2007 | 20 | 29 |
| 2008 | 15 | 38 |
| 2009 | 22 | 46 |
| 2010 | 21 | 58 |
| 2011 | 27 | 54 |
| 2012 | 31 | 45 |
| 2013 | 43 | 40 |
| 2014 | 45 | 30 |
| 2015 | 31 | 48 |
| 2016 | 33 | 34 |
| 2017 | 40 | 39 |
| 2018 | 41 | 41 |
| 2019 | 36 | 61 |
| 2020 | 42 | 67 |
| 2021 | 58 | 53 |
| 2022 | 49 | 40 |
| 2023 | 44 | 41 |
| 2024 | 34 | 35 |
| 2025 | 33 | 21 |
| 2026 | 13 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23N 2241/20Gas turbinesIndexing code372
- F23N 2241/08Household apparatusIndexing code165
- F23N 2241/04Heating waterIndexing code128
- F23N 2241/14Vehicle heating, the heat being derived otherwise than from the propulsion plantIndexing code105
- F23N 2241/02Space-heatingIndexing code84
- F23N 2241/18Incinerating apparatusIndexing code69
- F23N 2241/10Generating vapourIndexing code28
- F23N 2241/06Space-heating and heating waterIndexing code24
Recent patents
- Systems and methods for automated furnace inducer sensor output verification22 Sep 2026US 12,742,548 B2Rheem Manufacturing Company
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Monitoring and maintaining flare tip temperatures4 Aug 2026US 12,698,896 B2Saudi Arabian Oil Company
- Quick heat algorithm for modulating heating equipment14 Jul 2026US 12,680,719 B2Johnson Controls Light Commercial IP GmbH
- Fluid heating system with combustion trim learning14 Jul 2026US 12,680,727 B2A. O. Smith Corporation
- Monitoring system and monitoring method13 Aug 2026US 2026/0235474 A1Yokogawa Electric Corporation
- Method for starting the combustion operation of a fuel-powered vehicle heater25 Jun 2026US 2026/0175646 A1Eberspächer Climate Control Systems GmbH & Co. KG
- Fuel identification and flame behavior monitoring system28 May 2026US 2026/0146737 A1Carrier Corporation
- Method and system for controlling operation of an inducer motor of a combustion system30 Apr 2026US 2026/0117973 A1Carrier Corporation
- Stove with automated flame control function23 Apr 2026US 2026/0110436 A1Shin Fang Global CO., LTD.
Most cited
By later US patents
- Recuperated gas turbine engine system and method employing catalytic combustion170US 7,007,487 B2MES International, Inc. · 2006
- Thermostat including a vacation mode in which electrical devices within and proximate the conditioned space are operated by the thermostat to provide an occupied appearance154US 6,581,846 B12003
- Water heater controller140US 5,056,712 A1991
- Thermostat display system providing animated icons139US 7,455,240 B2Ranco Incorporated of Delaware · 2008
- Modulating thermostat for gas oven burner115US 6,149,065 AHarper-Wyman Company · 2000