F23N 2237/02
Two or more burners
Official title: two or more burners
F23N2237/02 (Two or more burners) appears on 296 US grants and 286 published applications in this corpus.
Search patents in F23N- Granted patents
- 296
- Published applications
- 286
- Assignees
- 186
- Inventors
- 747
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 5 | 6 |
| 2003 | 4 | 5 |
| 2004 | 9 | 9 |
| 2005 | 4 | 15 |
| 2006 | 5 | 8 |
| 2007 | 7 | 17 |
| 2008 | 2 | 7 |
| 2009 | 7 | 14 |
| 2010 | 8 | 18 |
| 2011 | 10 | 21 |
| 2012 | 9 | 10 |
| 2013 | 12 | 14 |
| 2014 | 14 | 7 |
| 2015 | 6 | 12 |
| 2016 | 9 | 15 |
| 2017 | 10 | 14 |
| 2018 | 10 | 15 |
| 2019 | 19 | 15 |
| 2020 | 15 | 17 |
| 2021 | 16 | 11 |
| 2022 | 7 | 11 |
| 2023 | 17 | 11 |
| 2024 | 4 | 7 |
| 2025 | 9 | 3 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas furnace and air conditioner having the same5 May 2026US 12,618,559 B2LG Electronics Inc.
- Motor controller for draft inducer motor in a furnace and method of use3 Mar 2026US 12,565,996 B2Regal Beloit America, Inc.
- Gas turbine combustor having a first combustion zone receiving multiple fuels and a second combustion zone receiving a fuel not containing nitrogen atoms17 Feb 2026US 12,553,394 B2IHI Corporation
- Gas furnace and air conditioner having the same11 Nov 2025US 12,467,660 B2LG Electronics Inc.
- Cooking appliance with cycling of multiple gas burners to maintain temperature setpoint30 Sep 2025US 12,429,227 B2Midea Group Co., Ltd.
- Remaining gas amount management system27 Aug 2026US 2026/0251490 A1Panasonic Intellectual Property Management Co., Ltd.
- System and method for optimizing combustion in a boiler30 Apr 2026US 2026/0117968 A1General Electric Technology GmbH
- Optimized furnace burner adjustment for flameless combustion26 Feb 2026US 2026/0055892 A1Honeywell International Inc.
- Method and system for adaptive control of gas device for combustion appliances15 Jan 2026US 2026/0016160 A1Chant Heat Energy Science & Technology (Zhongshan) Co., LTD.
- Methods for providing enhanced staged oxygen control oxygen combustion and devices thereof24 Jul 2025US 2025/0237379 A1Selas Heat Technology Company LLC
Most cited
By later US patents
- Thermostatically controlled gas heater89US 5,470,018 ADESA International, Inc. · 1995
- Multi-point staging strategy for low emission and stable combustion71US 6,962,055 B2United Technologies Corporation · 2005
- Electronic gas cooktop control with simmer system and method thereof69US 7,255,100 B2CompuValve LLC · 2007
- Distributed appliance control system having fault isolation63US 6,728,600 B1Honeywell International Inc. · 2004
- Cooking grill using pellet fuel59US 9,814,354 B2Crystal Spring Colony Farms Ltd. · 2017