F22G 5/08
Preventing furnace gas backflow through recirculating fan
Official title: preventing furnace gas backflow through recirculating fan
F22G5/08 (Preventing furnace gas backflow through recirculating fan) appears on 2 US grants and 1 published applications in this corpus.
Search patents in F22G- Granted patents
- 2
- Published applications
- 1
- Assignees
- 3
- Inventors
- 5
- Latest grant
- 31 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant31 Oct 2023US 11,802,688 B2Mitsubishi Heavy Industries, Ltd.
- Apparatus for introducing gas recirculation to control steam temperature in steam generation systems24 Mar 1998US 5,730,070 ACombustion Engineering, Inc.
Most cited
By later US patents