Extraction of critical minerals using polyanions
US-2026043111-A1 · Feb 12, 2026 · US
This page is not indexed by search engines while we improve data quality.
using a solution of normally solid organic compounds, e.g. dissolved polymers, sugars, or the like
using a solution of normally solid organic compounds, e.g. dissolved polymers, sugars, or the like · 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 | C22B3/41 |
| Official title | {using a solution of normally solid organic compounds, e.g. dissolved polymers, sugars, or the like} |
| Display label | using a solution of normally solid organic compounds, e.g. dissolved polymers, sugars, or the like |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrometallurgical solvent extraction methods
US-12378633-B2 · Aug 5, 2025 · US
Controlling the rheology of a metal ore residue
US-12173126-B2 · Dec 24, 2024 · US
Controlling the rheology of a metal ore residue
US-12122884-B2 · Oct 22, 2024 · US
Controlling the rheology of a metal ore residue
US-2021171722-A1 · Jun 10, 2021 · US
Controlling the rheology of a metal ore residue
US-2021171723-A1 · Jun 10, 2021 · US
Method for recovering gold and gold recovery facility
US-2020318217-A1 · Oct 8, 2020 · US
Process of extraction of a platinum group metal or gold from organic compositions with surfactants
US-10752976-B2 · Aug 25, 2020 · US
Hydrometallurgical solvent extraction methods
US-2020048733-A1 · Feb 13, 2020 · US
Use of Surfactants to Extract a Platinum Group Metal or Gold from Organic Compositions
US-2019316223-A1 · Oct 17, 2019 · US
Method of direct solvent extraction of rare earth metals from an aqueous acid-leached ore slurry
US-10030286-B1 · Jul 24, 2018 · US