F23N 1/06
Conjointly with draught
Official title: conjointly with draught
F23N1/06 (Conjointly with draught) appears on 76 US grants and 19 published applications in this corpus.
Search patents in F23N- Granted patents
- 76
- Published applications
- 19
- Assignees
- 37
- Inventors
- 102
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 5 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Premixing apparatus3 Mar 2026US 12,565,997 B2Rinnai Corporation
- Systems and methods for operating a furnace system15 Jul 2025US 12,359,846 B2Johnson Controls Light Commercial IP GmbH
- Systems and methods for checking status of a pressure transducer27 Aug 2024US 12,072,110 B2Copeland Comfort Control LP
- Systems and methods for checking status of a pressure transducer25 Apr 2023US 11,635,220 B2Emerson Electric Co.
- Control method of gas furnace11 Apr 2023US 11,624,504 B2LG Electronics Inc.
- Systems and methods for checking status of a pressure transducer25 May 2023US 2023/0160589 A1Emerson Electric Co.
- Premixing Apparatus13 Apr 2023US 2023/0112151 A1Rinnai Corporation
- Systems and methods for operating a furnace system5 May 2022US 2022/0136736 A1Johnson Controls Tyco IP Holdings LLP
- Systems and methods for checking status of a pressure transducer3 Feb 2022US 2022/0034536 A1Emerson Electric Co.
- Systems and methods for checking status of a pressure transducer3 Feb 2022US 2022/0034537 A1Emerson Electric Co.
Most cited
By later US patents
- Variable speed inducer motor control method99US 5,791,332 ACarrier Corporation · 1998
- Combustion air regulating apparatus for use with induced draft furnaces90US 5,993,195 ACarrier Corporation · 1999
- Flame ionization control apparatus and method78US 5,971,745 AGas Research Institute · 1999
- Furnace control using induced draft blower and exhaust stack flow rate sensing65US 4,251,025 AHoneywell Inc. · 1981
- Furnace control using induced draft blower and exhaust gas differential pressure sensing59US 4,334,855 AHoneywell Inc. · 1982