F23N 1/02
Conjointly with air supply
Official title: conjointly with air supply
F23N1/02 (Conjointly with air supply) appears on 832 US grants and 670 published applications in this corpus.
Search patents in F23N- Granted patents
- 832
- Published applications
- 670
- Assignees
- 494
- Inventors
- 1,813
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 12 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 14 | 0 |
| 1982 | 13 | 0 |
| 1983 | 10 | 0 |
| 1984 | 25 | 0 |
| 1985 | 15 | 0 |
| 1986 | 20 | 0 |
| 1987 | 21 | 0 |
| 1988 | 21 | 0 |
| 1989 | 19 | 0 |
| 1990 | 21 | 0 |
| 1991 | 23 | 0 |
| 1992 | 13 | 0 |
| 1993 | 21 | 0 |
| 1994 | 17 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 17 | 0 |
| 2000 | 14 | 0 |
| 2001 | 15 | 8 |
| 2002 | 7 | 12 |
| 2003 | 14 | 8 |
| 2004 | 10 | 18 |
| 2005 | 9 | 16 |
| 2006 | 9 | 16 |
| 2007 | 12 | 18 |
| 2008 | 6 | 15 |
| 2009 | 8 | 26 |
| 2010 | 8 | 18 |
| 2011 | 12 | 33 |
| 2012 | 9 | 23 |
| 2013 | 16 | 34 |
| 2014 | 26 | 31 |
| 2015 | 18 | 38 |
| 2016 | 29 | 29 |
| 2017 | 30 | 26 |
| 2018 | 23 | 34 |
| 2019 | 36 | 43 |
| 2020 | 29 | 34 |
| 2021 | 26 | 29 |
| 2022 | 23 | 47 |
| 2023 | 20 | 29 |
| 2024 | 27 | 39 |
| 2025 | 32 | 28 |
| 2026 | 21 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for mixing fluids22 Sep 2026US 12,742,545 B2Ekona Power Inc.
- Convection conveyor oven manifold and damper system22 Sep 2026US 12,742,546 B2The Middleby Corporation
- Method and kiln for the firing of substantially flat base ceramic articles8 Sep 2026US 12,729,855 B2Sacmi Forni & Filter S.P.A.
- Burner for fuel combustion and combustion method therefor1 Sep 2026US 12,723,753 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Device and method for controlling a comburent-fuel mixture in a premixed gas burner17 Sep 2026US 2026/0276195 A1Bertelli & Partners S.R.L.
- Biomass heater system and method20 Aug 2026US 2026/0243431 A1The Research Foundation for The State University of New York
- Method for reducing nitrogen oxide emission and combustion system16 Jul 2026US 2026/0202054 A1China Petroleum & Chemical Corporation
- Venturi for boiler2 Jul 2026US 2026/0185704 A1Kyungdong Navien Co., Ltd.
- Premixer and gas device2 Jul 2026US 2026/0185708 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
Most cited
By later US patents
- Modulating furnace with two-speed draft inducer138US 5,732,691 ARheem Manufacturing Company · 1998
- Variable heat generating method and apparatus129US 4,622,007 AAmerican Combustion, Inc. · 1986
- System and process for controlling the flow of air and fuel to a burner92US 4,645,450 AControl Techtronics, Inc. · 1987
- Apparatus for modulating the flow of air and fuel to a gas burner90US 5,520,533 AHoneywell Inc. · 1996
- Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency88US 4,688,547 ACarrier Corporation · 1987