A method for producing ferrous sulphate and phosphoric acid
US-2026070788-A1 · Mar 12, 2026 · US
Sulfates {(C01G49/0018 takes precedence)}
Sulfates {(C01G49/0018 takes precedence)} · 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 | C01G49/14 |
| Official title | Sulfates {(C01G49/0018 takes precedence)} |
| Display label | Sulfates {(C01G49/0018 takes precedence)} |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 18 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Therapeutic drug for lipid-peroxidation-induced diseases and screening method for therapeutic drugs for lipid-peroxidation-induced diseases
US-12306164-B2 · May 20, 2025 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
Therapeutic drug for lipid-peroxidation-induced diseases and screening method for therapeutic drugs for lipid-peroxidation-induced diseases
US-2023324359-A1 · Oct 12, 2023 · US
Therapeutic drug for lipid-peroxidation-induced diseases and screening method for therapeutic drugs for lipid-peroxidation-induced diseases
US-2023324358-A1 · Oct 12, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2022411328-A1 · Dec 29, 2022 · US
Therapeutic drug for lipid-peroxidation-induced diseases and screening method for therapeutic drugs for lipid-peroxidation-induced diseases
US-11519893-B2 · Dec 6, 2022 · US
Composition and method for stabilizing iron compounds in an aqueous environment, and use of composition
US-11498859-B2 · Nov 15, 2022 · US
Degradation agent for viscous fluid and method for producing said degradation agent
US-11306242-B2 · Apr 19, 2022 · US
Laser processing apparatus and methods of laser-processing workpieces
US-2021331273-A1 · Oct 28, 2021 · US
System and method for enhanced metal recovery during atmospheric leaching of metal sulfides
US-11124856-B1 · Sep 21, 2021 · US
Degradation agent for viscous fluid and method for producing said degradation agent
US-2021261856-A1 · Aug 26, 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 to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2021070656-A1 · Mar 11, 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
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01G49/14?
- CPC C01G49/14 is the Cooperative Patent Classification code for “Sulfates {(C01G49/0018 takes precedence)}.”
- How many patents are filed under CPC C01G49/14 (Sulfates {(C01G49/0018 takes precedence)})?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C01G49/14 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).