F23N 1/04
Conjointly with air supply and with draught
Official title: conjointly with air supply and with draught
F23N1/04 (Conjointly with air supply and with draught) appears on 45 US grants and 43 published applications in this corpus.
Search patents in F23N- Granted patents
- 45
- Published applications
- 43
- Assignees
- 46
- Inventors
- 125
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 3 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 1 |
| 2018 | 3 | 4 |
| 2019 | 3 | 4 |
| 2020 | 3 | 3 |
| 2021 | 1 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 4 |
| 2024 | 3 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and burner for the thermal disposal of pollutants in process gases14 Apr 2026US 12,601,479 B2DAS Environmental Expert GmbH
- Two-stage catalytic heating systems and methods of operating thereof22 Jul 2025US 12,366,356 B2Proof Energy Inc.
- Determining the reduction rate of a recovery boiler5 Nov 2024US 12,134,859 B2Andritz Inc.
- Outdoor heating devices and methods of use14 May 2024US 11,982,468 B2
- Flame module for a spectrometer9 Apr 2024US 11,953,203 B2Thermo Fisher Scientific (Bremen) GmbH
- Method of controlling inverter for blower of industrial boiler based on iot and industrial boiler using the same21 May 2026US 2026/0139827 A1DAELIM ROYAL EnP CO., LTD.
- Adaptive Electronic Composite System17 Jul 2025US 2025/0230929 A1Siemens Aktiengesellschaft
- Premixing device and combustion device including the same29 May 2025US 2025/0172288 A1Noritz Corporation
- Method and controller for operating a gas burner appliance5 Dec 2024US 2024/0401804 A1Pittway Sarl
- Outdoor Heating Devices and Methods of Use16 May 2024US 2024/0159429 A1
Most cited
By later US patents
- Non-recovery coke oven gas combustion system135US 5,968,320 AStelco Inc. · 1999
- Furnace monitoring system97US 4,296,727 AMicro-Burner Systems Corporation · 1981
- Method and apparatus for optimizing fuel-to-air ratio in the combustible gas supply of a radiant burner74US 5,037,291 ACarrier Corporation · 1991
- Method and apparatus for controlling fuel-to-air ratio of the combustible gas supply of a radiant burner64US 5,112,217 ACarrier Corporation · 1992
- Combustion efficiency improving apparatus29US 4,509,912 A1985