F23N 2231/28
Preventing flash-back or blow-back
Official title: preventing flash-back or blow-back
F23N2231/28 (Preventing flash-back or blow-back) appears on 51 US grants and 54 published applications in this corpus.
Search patents in F23N- Granted patents
- 51
- Published applications
- 54
- Assignees
- 37
- Inventors
- 139
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 4 |
| 2005 | 6 | 3 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 3 | 9 |
| 2011 | 1 | 2 |
| 2012 | 1 | 4 |
| 2013 | 5 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 3 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 4 |
| 2019 | 3 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Detection apparatus and combustion system5 May 2026US 12,618,560 B2Yokogawa Electric Corporation
- Systems and methods to prevent explosions in a tank using automated gas harvesting and purge safety devices10 Sep 2024US 12,085,278 B2Halliburton Energy Services.Inc.
- Filter assembly structure and water heater including the same30 Jul 2024US 12,050,029 B2Kyungdong Navien Co., Ltd.
- Method for operating a premix gas burner, a premix gas burner and a boiler2 Jul 2024US 12,025,309 B2BDR Thermea Group B.V.
- Flame arrester/burner assembly with a multifarious element for preventing deflagrations and extended endurance burning time5 Dec 2023US 11,833,380 B2
- Flame arrestor assembly for a gas water heater appliance30 Oct 2025US 2025/0334297 A1Haier US Appliance Solutions, Inc.
- Combustion apparatus and hot water apparatus provided with same6 Feb 2025US 2025/0043955 A1Noritz Corporation
- Detection apparatus and combustion system9 Jan 2025US 2025/0012442 A1Yokogawa Electric Corporation
- System of preventing backflash in pre-mixed hydrogen burner and method thereof12 Sep 2024US 2024/0302041 A1Hyundai Motor Company
- Systems and methods to prevent explosions in a tank using automated gas harvesting and purge safety devices12 Oct 2023US 2023/0324046 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Real-time combustion controls and diagnostics sensors (CCADS)106US 6,887,069 B1The United States of America as represented by the United States Department of Energy · 2005
- Flashback detection sensor for lean premix fuel nozzles94US 6,429,020 B1The United States of America as represented by the United States Department of Energy · 2002
- Fiber optic sensors for gas turbine control42US 6,599,028 B1General Electric Company · 2003
- Apparatus for detecting flame conditions in combustion systems39US 5,961,314 ARosemount Aerospace Inc. · 1999
- System and methods for controlling a water heater35US 7,290,502 B2Emerson Electric Co. · 2007