F22D 1/006
Feed-water heaters, i.e. economisers or like preheaters: with heating tubes
Official title: {with heating tubes (F22D1/24 takes precedence)}
F22D1/006 (Feed-water heaters, i.e. economisers or like preheaters: with heating tubes) appears on 2 US grants and 4 published applications in this corpus.
Search patents in F22D- Granted patents
- 2
- Published applications
- 4
- Assignees
- 3
- Inventors
- 3
- Latest grant
- 2 Jul 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year.
Recent patents
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Most cited
By later US patents