F22B 33/08
Of boilers of water-tube type with boilers of fire-tube type
Official title: of boilers of water-tube type with boilers of fire-tube type
F22B33/08 (Of boilers of water-tube type with boilers of fire-tube type) appears on 1 US grants and 2 published applications in this corpus.
Search patents in F22B- Granted patents
- 1
- Published applications
- 2
- Assignees
- 1
- Inventors
- 4
- Latest grant
- 15 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year.
Recent patents
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.