F23D 14/84
Flame spreading or otherwise shaping
Official title: Flame spreading or otherwise shaping (F23D14/70 takes precedence)
F23D14/84 (Flame spreading or otherwise shaping) appears on 155 US grants and 218 published applications in this corpus.
Search patents in F23D- Granted patents
- 155
- Published applications
- 218
- Assignees
- 104
- Inventors
- 400
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 3 | 3 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 0 | 2 |
| 2009 | 4 | 4 |
| 2010 | 1 | 6 |
| 2011 | 2 | 9 |
| 2012 | 4 | 11 |
| 2013 | 4 | 11 |
| 2014 | 3 | 22 |
| 2015 | 10 | 21 |
| 2016 | 10 | 27 |
| 2017 | 16 | 15 |
| 2018 | 16 | 13 |
| 2019 | 15 | 10 |
| 2020 | 13 | 17 |
| 2021 | 6 | 6 |
| 2022 | 11 | 4 |
| 2023 | 5 | 9 |
| 2024 | 5 | 12 |
| 2025 | 6 | 2 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas burner with secondary and tertiary air supplies1 Sep 2026US 12,723,754 B2Nieco Corporation
- 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
- Burner and water heating apparatus including same2 Jun 2026US 12,644,595 B2Kyungdong Navien Co., Ltd.
- Fuel-air mixing and flame stabilization device for a low emission burner with internal flue gas recirculation26 May 2026US 12,638,174 B2Honeywell International Inc.
- Systems and methods for a fire display device27 Jan 2026US 12,535,218 B2Red Weather Systems Inc.
- Combustion furnace and assembly2 Apr 2026US 2026/0092703 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Flame effect system12 Mar 2026US 2026/0071752 A1Universal City Studios LLC
- Structured variable porosity mixing and/or combustion device and process12 Mar 2026US 2026/0071753 A1Utilization Technology Developement, Nfp
- Stacked burner with channel for improved ignition16 Oct 2025US 2025/0321001 A1Whirlpool Corporation
- Oven appliances with improved gas burner assembly2 Oct 2025US 2025/0305678 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Process and apparatus for uniform combustion within a molten material86US 7,273,583 B2Gas Technology Institute · 2007
- Oxy-liquid fuel combustion process and apparatus84US 5,567,141 ACombustion Tec, Inc. · 1996
- Burner with a perforated flame holder and pre-heat apparatus52US 9,377,190 B2Clearsign Combustion Corporation · 2016
- High efficiency conveyor oven51US 6,655,373 B1Middleby Marshall Inc. · 2003
- Method for flame location transition from a start-up location to a perforated flame holder49US 9,388,981 B2Clearsign Combustion Corporation · 2016