Lipophilic guanidinium compounds for removal of oxyanions from aqueous solutions
US-11001554-B2 · May 11, 2021 · US
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Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C22B3/001 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for recovering scandium
US-10570482-B2 · Feb 25, 2020 · US
Method for recovering high-purity scandium
US-10081851-B2 · Sep 25, 2018 · US
Scandium extraction method
US-9481638-B2 · Nov 1, 2016 · US