Crystal of europium compound and method for producing crystal of europium compound
US-12276039-B2 · Apr 15, 2025 · US
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Chlorides
Chlorides · 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 | C01F17/271 |
| Official title | Chlorides |
| Display label | Chlorides |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Halide production method
US-12269752-B2 · Apr 8, 2025 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-2024271247-A1 · Aug 15, 2024 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-11866804-B2 · Jan 9, 2024 · US
Macrocyclic host molecule-based core-shell nanoparticles and method for synthesizing same
US-2023382939-A1 · Nov 30, 2023 · US
Tetraazadodecane based chelating agents for separation of rare earth elements and method therefor
US-2023356105-A1 · Nov 9, 2023 · US
Crystal of europium compound and method for producing crystal of europium compound
US-2023175165-A1 · Jun 8, 2023 · US
Rare-earth halide scintillating material and application thereof
US-11512251-B2 · Nov 29, 2022 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-11186894-B2 · Nov 30, 2021 · US
Halide production method
US-2021269323-A1 · Sep 2, 2021 · US
Method for producing halide
US-2021261430-A1 · Aug 26, 2021 · US
Rare-earth halide scintillating material and application thereof
US-2020318005-A1 · Oct 8, 2020 · US
Method of recovering metal compounds from solid oxide fuel cell scrap
US-10651479-B2 · May 12, 2020 · US
Method for recovering scandium
US-10570480-B2 · Feb 25, 2020 · US
Method of recovering metal compounds from solid oxide fuel cell scrap
US-2019245216-A1 · Aug 8, 2019 · US
Preparation of rare earth metals and other chemicals from industrial waste coal ash
US-2019153562-A1 · May 23, 2019 · US
Method of recovering rare earth aluminum and silicon from rare earth-containing aluminum-silicon scraps
US-10280482-B2 · May 7, 2019 · US
Method of recovering rare earth aluminum and silicon from rare earth-containing aluminum-silicon scraps
US-2018363098-A1 · Dec 20, 2018 · US
Method for recovering scandium
US-2018087128-A1 · Mar 29, 2018 · US
Separation of the rare-earth fission product poisons from spent nuclear fuel
US-9428401-B1 · Aug 30, 2016 · US