Preheating appartus for steel scrap and metallurgical melting vessel equipped therewith
US-9945002-B2 · Apr 17, 2018 · US
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using an air-lock
using an air-lock · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F27D3/0032 |
| Official title | {using an air-lock} |
| Display label | using an air-lock |
| Total patents | 1 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Not enough yearly data to assess filing trend yet.
| Year | Patents |
|---|---|
| 2018 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.