F23N 2235/08
Used with heat exchanges
Official title: used with heat exchanges
F23N2235/08 (Used with heat exchanges) appears on 3 US grants and 7 published applications in this corpus.
Search patents in F23N- Granted patents
- 3
- Published applications
- 7
- Assignees
- 1
- Inventors
- 13
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Burner Device with Primary Air Chamber, Staged Air Chamber, and Tertiary Air Chamber17 Oct 2024US 2024/0344693 A1
- Heat Exchange Flue and Heat Exchange Device9 Jun 2022US 2022/0178536 A1
- Gas valve with overpressure diagnostics22 Mar 2018US 2018/0080649 A1Honeywell International Inc.
- Gas valve with overpressure diagnostics20 Jun 2013US 2013/0153041 A1Honeywell International Inc.
- Flue having an adjustable flue gas flow unit18 Apr 2013US 2013/0092105 A1
Most cited
By later US patents