Lead oxides, compositions comprising lead oxides and methods of making lead oxides
US-2026055004-A1 · Feb 26, 2026 · US
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Oxides
Oxides · 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 | C01G21/02 |
| Official title | Oxides |
| Display label | Oxides |
| Total patents | 15 |
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 | 3 |
| 2016 | 2 |
| 2018 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ball mill cooling system and method
US-2025025884-A1 · Jan 23, 2025 · US
Ball mill cooling system and method
US-12109570-B2 · Oct 8, 2024 · US
Method for recovering lead from copper smelting dust
US-2024076759-A1 · Mar 7, 2024 · US
Composition for metal oxide film formation, method for producing composition for metal oxide film formation, and method for producing metal oxide film using the composition for metal oxide film formation
US-2023416924-A1 · Dec 28, 2023 · US
Recycling of lead- and tin-based materials
US-11427478-B2 · Aug 30, 2022 · US
Ball mill cooling system and method
US-2021394192-A1 · Dec 23, 2021 · US
Particle, Composition, Film, Laminated Structure, Light-Emitting Device and Display
US-2021395608-A1 · Dec 23, 2021 · US
Recycling of lead- and tin-based materials
US-2021317001-A1 · Oct 14, 2021 · US
High-performing bulk photovoltaics
US-10096729-B2 · Oct 9, 2018 · US
High-performing bulk photovoltaics
US-2016336466-A1 · Nov 17, 2016 · US
Lead-acid batteries and pastes therefor
US-9368787-B2 · Jun 14, 2016 · US
Irregular-surface forming method using plasma-etching process, and electrode member
US-9054244-B2 · Jun 9, 2015 · US
Lead-Acid Batteries and Pastes Therefor
US-2015123042-A1 · May 7, 2015 · US
Lead-acid batteries and pastes therefor
US-8932482-B2 · Jan 13, 2015 · US