Processes for crystallizing metal sulfates and methods for producing crystallized metal sulfates
US-12281027-B2 · Apr 22, 2025 · US
Sulfates
Sulfates · 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 | C01G3/10 |
| Official title | Sulfates |
| Display label | Sulfates |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 20 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparation of copper compounds
US-12075783-B2 · Sep 3, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-12000012-B2 · Jun 4, 2024 · US
Method for treating copper-containing waste etching solution
US-11939229-B2 · Mar 26, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-2024084421-A1 · Mar 14, 2024 · US
Biosynthesis of metal nanoparticles
US-11806790-B2 · Nov 7, 2023 · US
Method for treating copper-containing waste etching solution
US-2023166979-A1 · Jun 1, 2023 · US
Processes and methods for production of crystallized metal sulfates
US-2023048939-A1 · Feb 16, 2023 · US
Porous materials via freeze-casting of metal salt solutions
US-11376657-B2 · Jul 5, 2022 · US
Process for preparation of copper compounds
US-2022159964-A1 · May 26, 2022 · US
Method of pretreatment and bromine recovery of PCB incineration ash
US-11198615-B2 · Dec 14, 2021 · US
System and method for enhanced metal recovery during atmospheric leaching of metal sulfides
US-11124856-B1 · Sep 21, 2021 · US
Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups
US-2021198767-A1 · Jul 1, 2021 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10961604-B2 · Mar 30, 2021 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10954583-B2 · Mar 23, 2021 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10876186-B2 · Dec 29, 2020 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10876187-B2 · Dec 29, 2020 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10870903-B2 · Dec 22, 2020 · US
Process for leaching metal sulfides with reagents having thiocarbonyl functional groups
US-10865460-B2 · Dec 15, 2020 · US
Biosynthesis of metal nanoparticles
US-2020377913-A1 · Dec 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G3/10?
- CPC C01G3/10 is the Cooperative Patent Classification code for “Sulfates.”
- How many patents are filed under CPC C01G3/10 (Sulfates)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC C01G3/10 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).