LOW alpha-RAY EMISSION STANNOUS OXIDE AND METHOD OF PRODUCING THE SAME
US-2024294391-A1 · Sep 5, 2024 · US
This page is not indexed by search engines while we improve data quality.
Sulfates
Sulfates · 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 | C01G21/20 |
| Official title | Sulfates |
| Display label | Sulfates |
| Total patents | 10 |
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 |
|---|---|
| 2020 | 2 |
| 2021 | 4 |
| 2023 | 1 |
| 2024 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Well-defined lead-acid battery active materials
US-2024072256-A1 · Feb 29, 2024 · US
Method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-11858822-B2 · Jan 2, 2024 · US
A method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-2023192488-A1 · Jun 22, 2023 · US
Method of pretreatment and bromine recovery of PCB incineration ash
US-11198615-B2 · Dec 14, 2021 · US
LOW alpha-RAY EMISSION STANNOUS OXIDE AND METHOD OF PRODUCING THE SAME
US-2021221700-A1 · Jul 22, 2021 · US
Method of Recycling Lead-Acid Battery Waste into Lead Halide for Resource Utilization and Purification
US-2021218081-A1 · Jul 15, 2021 · US
Method of recovering bromide from bromine-containing smelting ash
US-10954125-B2 · Mar 23, 2021 · US
A method of recovering bromide from bromine-containing smelting ash
US-2020392000-A1 · Dec 17, 2020 · US
A Method of Pretreatment and Bromine Recovery of PCB Incineration Ash
US-2020262712-A1 · Aug 20, 2020 · US