Process for recovering gold from ores
US-11041227-B2 · Jun 22, 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 | C22B3/0043 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processing method for lithium ion battery scrap
US-10865462-B2 · Dec 15, 2020 · US
Processing method for lithium ion battery scrap
US-10807879-B2 · Oct 20, 2020 · US
Method of refining of scandium oxide from concentrates using solvent extraction
US-10494697-B2 · Dec 3, 2019 · US
Methods and systems for controlling impurity metal concentration during metallurgic processes
US-2018340264-A1 · Nov 29, 2018 · US
Methods and systems for controlling impurity metal concentration during metallurgic processes
US-10060040-B2 · Aug 28, 2018 · US