F23D 14/583
Of elongated shape
Official title: {of elongated shape, e.g. slits}
F23D14/583 (Of elongated shape) appears on 135 US grants and 141 published applications in this corpus.
Search patents in F23D- Granted patents
- 135
- Published applications
- 141
- Assignees
- 98
- Inventors
- 362
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 5 | 6 |
| 2005 | 3 | 4 |
| 2006 | 3 | 5 |
| 2007 | 2 | 7 |
| 2008 | 3 | 8 |
| 2009 | 2 | 3 |
| 2010 | 1 | 4 |
| 2011 | 3 | 7 |
| 2012 | 5 | 9 |
| 2013 | 1 | 7 |
| 2014 | 4 | 3 |
| 2015 | 8 | 9 |
| 2016 | 2 | 8 |
| 2017 | 11 | 4 |
| 2018 | 8 | 13 |
| 2019 | 6 | 8 |
| 2020 | 10 | 9 |
| 2021 | 4 | 3 |
| 2022 | 6 | 4 |
| 2023 | 2 | 4 |
| 2024 | 1 | 3 |
| 2025 | 4 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Burner and water heater comprising same25 Aug 2026US 12,716,615 B2Kyungdong Navien Co., Ltd.
- Gas burner membrane24 Mar 2026US 12,584,625 B2Beckett Thermal Limited
- Burner and method for transient heating6 Jan 2026US 12,516,809 B2Air Products and Chemicals, Inc.
- Reactor and process for partial oxidation17 Jun 2025US 12,330,940 B2Casale SA
- Rich-lean flame burner6 May 2025US 12,292,189 B2Rinnai Corporation
- Dual-burner firepit20 Aug 2026US 2026/0243434 A1
- Gas burner unit and heat-cooking apparatus provided with the same19 Feb 2026US 2026/0049714 A1Rinnai Corporation
- Burner head, fire grate, and gas device22 Jan 2026US 2026/0022834 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- Extended orifice for a premixed burner15 Jan 2026US 2026/0016157 A1AccuTemp
- Method for heating steel sheet, method for producing coated steel sheet, direct fired furnace, and continuous hot-dip galvanizing facility25 Dec 2025US 2025/0388989 A1Jfe Steel Corporation
Most cited
By later US patents
- Arrangement for controlling fluid jets injected into a fluid stream1,018US 7,976,213 B2United Technologies Corporation · 2011
- Variable flame retention device utilizing an interwoven flexible wire metal gauze54US 5,989,015 AGaz De France (G. D. F.) Service National · 1999
- Infrared wok heater34US 4,889,103 A1989
- Burner assemblies30US 6,116,893 AAerogen, Inc. · 2000
- Space heating appliance24US 4,869,230 AAmbi-Rad Limited · 1989