F23L 5/00
Blast-producing apparatus before the fire
F23L5/00 (Blast-producing apparatus before the fire) appears on 172 US grants and 155 published applications in this corpus.
Search patents in F23L- Granted patents
- 172
- Published applications
- 155
- Assignees
- 115
- Inventors
- 376
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 4 |
| 2003 | 5 | 4 |
| 2004 | 5 | 4 |
| 2005 | 5 | 3 |
| 2006 | 1 | 3 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 0 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 5 |
| 2013 | 4 | 8 |
| 2014 | 2 | 6 |
| 2015 | 2 | 9 |
| 2016 | 3 | 6 |
| 2017 | 5 | 3 |
| 2018 | 10 | 16 |
| 2019 | 6 | 13 |
| 2020 | 13 | 20 |
| 2021 | 8 | 10 |
| 2022 | 10 | 9 |
| 2023 | 12 | 7 |
| 2024 | 6 | 3 |
| 2025 | 5 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control and/or regulation of a combustion apparatus6 Jan 2026US 12,516,812 B2Siemens Aktiengesellschaft
- High turndown combustion system and method9 Dec 2025US 12,492,816 B2Camus Hydronics Limited
- Air and gas feeder device for gas boilers19 Aug 2025US 12,392,485 B2Nordgas S.R.L.
- Enriched air stove5 Aug 2025US 12,379,105 B2
- Air blower and combustion device including the same8 Jul 2025US 12,352,438 B2Noritz Corporation
- Flue gas circulation system for improving combustion characteristics and thermal characteristics of pulverized coal fired boiler3 Sep 2026US 2026/0258941 A1Xi'an Thermal Power Research Institute Co., Ltd.
- Combustion system capable of operating with a recycling of combustion fumes30 Jul 2026US 2026/0218900 A1Carbodown
- Combustion air delivery device system for fryers with filter clogging measurement and automatic adoption of airflow to compensate26 Mar 2026US 2026/0084082 A1The Frymaster Corporation
- Device for the delivery of a combustible gaseous mixture and procedure1 May 2025US 2025/0137639 A1Sit S.P.A.
- Catalytic burner and hydrogen boiler for water heating10 Apr 2025US 2025/0116398 A1Giacomini S.p. A.
Most cited
By later US patents
- Injector for injecting air into the combustion chamber of a torch burner and a torch burner103US 5,735,683 AE.E.T. Umwelt - & Gastechnik GmbH · 1998
- Smoke generator69US 4,436,100 A1984
- Heat recovery system and method of heat recovery and reuse for a portable incineration apparatus52US 6,536,360 B2Air Burners, Inc. · 2003
- Firebooster46US 4,810,173 A1989
- Bio-mass suspension burner40US 4,565,137 AAqua-Chem, Inc. · 1986