F22B 5/02
Steam boilers of drum type, i.e. without internal furnace or fire tubes
Official title: with auxiliary water tubes outside the boiler body
F22B5/02 (Steam boilers of drum type, i.e. without internal furnace or fire tubes) appears on 3 US grants and 4 published applications in this corpus.
Search patents in F22B- Granted patents
- 3
- Published applications
- 4
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 15 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
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