Sodium battery positive electrode material and preparation method therefor, positive electrode sheet and sodium battery
US-2026022028-A1 · Jan 22, 2026 · US
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Halides
Halides · 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 | C01G31/04 |
| Official title | Halides |
| Display label | Halides |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 10 |
| 2019 | 1 |
| 2021 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and apparatus for stabilizing vanadium compounds
US-12221357-B2 · Feb 11, 2025 · US
Methods and apparatus for stabilizing vanadium compounds
US-2025033990-A1 · Jan 30, 2025 · US
Methods and apparatus for stabilizing vanadium compounds
US-2021331935-A1 · Oct 28, 2021 · US
System and method for purifying vanadium pentoxide
US-10294118-B2 · May 21, 2019 · US
System and method for purifying and preparing high-purity vanadium pentoxide powder
US-10125024-B2 · Nov 13, 2018 · US
System and method for producing high-purity vanadium tetraoxide powder
US-10112846-B2 · Oct 30, 2018 · US
System and method for producing high-purity vanadium pentoxide powder
US-10099939-B2 · Oct 16, 2018 · US
System and method for preparing high-purity vanadium pentoxide powder
US-10053371-B2 · Aug 21, 2018 · US
PRODUCTION OF VCl4
US-2018134575-A1 · May 17, 2018 · US
System and Method for Preparing High-Purity Vanadium Pentoxide Powder
US-2018022616-A1 · Jan 25, 2018 · US
System and method for purifying and preparing high-purity vanadium pentoxide powder
US-2018009673-A1 · Jan 11, 2018 · US
System and method for producing high-purity vanadium tetraoxide powder
US-2018009674-A1 · Jan 11, 2018 · US
System and Method for Producing High-Purity Vanadium Pentoxide Powder
US-2018009675-A1 · Jan 11, 2018 · US
System and Method for Purifying Vanadium Pentoxide
US-2018002190-A1 · Jan 4, 2018 · US