Method for preparing high-melting-point metal powder through multi-stage deep reduction
US-11241740-B2 · Feb 8, 2022 · US
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Obtaining niobium, tantalum or vanadium
Obtaining niobium, tantalum or vanadium · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B34/20 |
| Official title | Obtaining niobium, tantalum or vanadium |
| Display label | Obtaining niobium, tantalum or vanadium |
| Total patents | 3 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2020 | 1 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.