A method for producing ferrous sulphate and phosphoric acid
US-2026070788-A1 · Mar 12, 2026 · US
from metallic phosphorus compounds, e.g. ferro-phosphorus · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C05B13/04 |
| Official title | from metallic phosphorus compounds, e.g. ferro-phosphorus |
| Display label | from metallic phosphorus compounds, e.g. ferro-phosphorus |
| Total patents | 3 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026070788-A1 · Mar 12, 2026 · US
US-10259752-B2 · Apr 16, 2019 · US
US-2018244587-A1 · Aug 30, 2018 · US