F23N 2237/00
Controlling
F23N2237/00 (Controlling) appears on 802 US grants and 718 published applications in this corpus.
Search patents in F23N- Granted patents
- 802
- Published applications
- 718
- Assignees
- 449
- Inventors
- 1,845
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 11 | 0 |
| 1983 | 5 | 0 |
| 1984 | 13 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 12 | 0 |
| 1989 | 19 | 0 |
| 1990 | 11 | 0 |
| 1991 | 17 | 0 |
| 1992 | 13 | 0 |
| 1993 | 21 | 0 |
| 1994 | 11 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 11 | 2 |
| 2002 | 13 | 11 |
| 2003 | 10 | 17 |
| 2004 | 21 | 28 |
| 2005 | 13 | 28 |
| 2006 | 14 | 16 |
| 2007 | 17 | 29 |
| 2008 | 9 | 22 |
| 2009 | 11 | 25 |
| 2010 | 18 | 49 |
| 2011 | 24 | 46 |
| 2012 | 25 | 46 |
| 2013 | 31 | 37 |
| 2014 | 34 | 32 |
| 2015 | 30 | 35 |
| 2016 | 34 | 32 |
| 2017 | 26 | 35 |
| 2018 | 25 | 28 |
| 2019 | 35 | 32 |
| 2020 | 25 | 32 |
| 2021 | 27 | 27 |
| 2022 | 26 | 33 |
| 2023 | 26 | 24 |
| 2024 | 22 | 25 |
| 2025 | 20 | 16 |
| 2026 | 15 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23N 2237/02Two or more burnersIndexing code296
- F23N 2237/08Two or more different types of fuel simultaneouslyIndexing code149
- F23N 2237/10High or low fireIndexing code132
- F23N 2237/24Height of burnerIndexing code75
- F23N 2237/16Secondary airIndexing code58
- F23N 2237/12Catalytic burnersIndexing code53
- F23N 2237/20One or more bypass conduitsIndexing code36
- F23N 2237/14Burners with gasification or vaporizer elementsIndexing code27
Recent patents
- Method and kiln for the firing of substantially flat base ceramic articles8 Sep 2026US 12,729,855 B2Sacmi Forni & Filter S.P.A.
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Method and apparatus for regulating a flame length in a partial oxidation reactor11 Aug 2026US 12,704,258 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Monitoring and maintaining flare tip temperatures4 Aug 2026US 12,698,896 B2Saudi Arabian Oil Company
- Systems and methods for fuel selection for combustion devices7 Jul 2026US 12,674,577 B2Rheem Manufacturing Company
- Remaining gas amount management system27 Aug 2026US 2026/0251490 A1Panasonic Intellectual Property Management Co., Ltd.
- Venturi for boiler2 Jul 2026US 2026/0185704 A1Kyungdong Navien Co., Ltd.
- Premixer and gas device2 Jul 2026US 2026/0185709 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- System and method for ultra-low fire gas heat algorithms11 Jun 2026US 2026/0160417 A1
- System and method for optimizing combustion in a boiler30 Apr 2026US 2026/0117968 A1General Electric Technology GmbH
Most cited
By later US patents
- Programmer1,483US 4,213,562 A1980
- Programmable electronic thermostat220US 4,308,991 AEmerson Electric Co. · 1982
- Electronic thermostat with repetitive operation cycle202US 4,335,847 A1982
- Analog to digital conversion employing the system clock of a microprocessor, the clock frequency varying with analog input185US 4,685,614 AHoneywell Inc. · 1987
- Recuperated gas turbine engine system and method employing catalytic combustion170US 7,007,487 B2MES International, Inc. · 2006