Method for producing iota alumina and iota alumina
US-2026015248-A1 · Jan 15, 2026 · US
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Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation
Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation · 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 | C01F7/42 |
| Official title | Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation |
| Display label | Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Waste battery treatment method
US-12456767-B2 · Oct 28, 2025 · US
Alumina powder, filler composition, resin composition, encapsulant, and fingerprint authentication sensor
US-2023159725-A1 · May 25, 2023 · US
Method for producing particles and apparatus for producing particles
US-2023104195-A1 · Apr 6, 2023 · US
Waste Battery Treatment Method
US-2022302515-A1 · Sep 22, 2022 · US
Activated metal low temperature reaction processes and products
US-2022234029-A1 · Jul 28, 2022 · US
Activated metal low temperature reaction processes and products
US-11298682-B2 · Apr 12, 2022 · US
Method of producing a highly-pure aluminum hydroxide
US-10526211-B2 · Jan 7, 2020 · US
Combined material including anodic porous alumina and a polymer matrix, and its use for the dental recondition
US-2019262239-A1 · Aug 29, 2019 · US
Method of producing a highly-pure aluminum hydroxide
US-2018022613-A1 · Jan 25, 2018 · US
Method for making nanowire structure
US-9840773-B2 · Dec 12, 2017 · US
Activated metal low temperature reaction processes and products
US-2017080405-A1 · Mar 23, 2017 · US