Processing hard rock lithium minerals or other materials to produce lithium materials and byproducts converted from a sodium sulfate intermediate product
US-2024425381-A1 · Dec 26, 2024 · US
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 | C22B3/44 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 532 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 41 |
| 2017 | 30 |
| 2018 | 45 |
| 2019 | 40 |
| 2020 | 33 |
| 2021 | 36 |
| 2022 | 29 |
| 2023 | 64 |
| 2024 | 83 |
| 2025 | 73 |
| 2026 | 32 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of extracting lithium, method of preparing lithium carbonate and method of preparing lithium hydroxide
US-11873228-B2 · Jan 16, 2024 · US
Wet based formulations for the selective removal of noble metals
US-2016362804-A1 · Dec 15, 2016 · US
Method for producing hematite for ironmaking
US-2016362304-A1 · Dec 15, 2016 · US
System and method for parallel solultion extraction of one or more metal values from metal-bearing materials
US-2016355937-A1 · Dec 8, 2016 · US
Methods To Recover Cesium Formate From A Mixed Alkali Metal Formate Blend
US-2016355406-A1 · Dec 8, 2016 · US
Scandium recovery method
US-2016340757-A1 · Nov 24, 2016 · US
System and process for production of magnesium metal and magnesium hydride from magnesium-containing salts and brines
US-9499880-B2 · Nov 22, 2016 · US
Compounds and Methods to Isolate Gold
US-2016333441-A1 · Nov 17, 2016 · US
Utilization of temperature heat adsorption skin temperature as scale control reagent driver
US-9476108-B2 · Oct 25, 2016 · US
Copper processing method
US-2016304988-A1 · Oct 20, 2016 · US
Method for producing hematite for ironmaking
US-2016289084-A1 · Oct 6, 2016 · US
Methods to recover cesium formate from a mixed alkali metal formate blend
US-9452966-B2 · Sep 27, 2016 · US
System and method for parallel solution extraction of one or more metal values from metal-bearing materials
US-9447483-B2 · Sep 20, 2016 · US
Method for removing cobalt deposits in a high-pressure olefin hydroformylation reactor
US-2016265084-A1 · Sep 15, 2016 · US
System and process for production of magnesium metal and magnesium hydride from magnesium-containing salts and brines
US-2016258037-A1 · Sep 8, 2016 · US
Method of recovering rare-earth elements
US-2016251739-A1 · Sep 1, 2016 · US
Compositions and methods for enhancing production of aluminum hydroxide in an aluminum hydroxide production process
US-2016230248-A1 · Aug 11, 2016 · US
Process for treating liquid effluents and recovering metals
US-9410223-B2 · Aug 9, 2016 · US
Method for recovering scandium
US-9399804-B2 · Jul 26, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B3/44?
- CPC C22B3/44 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C22B3/44 (Chemistry & Metallurgy)?
- Our database includes 532 publications tagged with this CPC code.
- Is patent activity under CPC C22B3/44 growing?
- Publication counts under this code: 83 in 2024 vs 73 in 2025 (latest complete years).