Method for producing phosphorus trifluoride and method for producing phosphorus pentafluoride
US-2025178902-A1 · Jun 5, 2025 · US
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of alkali metals
of alkali metals · 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 | C01B25/445 |
| Official title | of alkali metals |
| Display label | of alkali metals |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Positive electrode additive, manufacturing method thereof, and positive electrode and lithium rechargeable battery including the same
US-12249714-B2 · Mar 11, 2025 · US
Antimicrobial composite material
US-12091316-B2 · Sep 17, 2024 · US
Cation energy storage device and methods
US-11881579-B2 · Jan 23, 2024 · US
Cation energy storage device and methods
US-2023031332-A1 · Feb 2, 2023 · US
Cation energy storage device and methods
US-11374211-B2 · Jun 28, 2022 · US
Positive Electrode Additive, Manufacturing Method Thereof, and Positive Electrode and Lithium Rechargeable Battery Including the Same
US-2022020988-A1 · Jan 20, 2022 · US
Anti-scaling composition for water systems
US-11130691-B2 · Sep 28, 2021 · US
Antimicrobial composite material
US-2021214223-A1 · Jul 15, 2021 · US
Cation energy storage device and methods
US-2021083265-A1 · Mar 18, 2021 · US
Cation energy storage device and methods
US-10673065-B2 · Jun 2, 2020 · US
Anti-scaling composition for water systems
US-2019194045-A1 · Jun 27, 2019 · US
Cation energy storage device and methods
US-2018108905-A1 · Apr 19, 2018 · US