Oxidative leaching methods
US-2025146102-A1 · May 8, 2025 · US
containing nitrogen · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B15/0073 |
| Official title | {containing nitrogen} |
| Display label | containing nitrogen |
| Total patents | 9 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025146102-A1 · May 8, 2025 · US
US-2024343969-A1 · Oct 17, 2024 · US
US-2020232066-A1 · Jul 23, 2020 · US
US-10563284-B2 · Feb 18, 2020 · US
US-2019345581-A1 · Nov 14, 2019 · US
US-2019345580-A1 · Nov 14, 2019 · US
US-2016304988-A1 · Oct 20, 2016 · US
US-2016122846-A1 · May 5, 2016 · US
US-9238850-B2 · Jan 19, 2016 · US