System and method for desulfurization and denitrification integrated treatment and recycling of flue gas by using red mud
US-10843131-B2 · Nov 24, 2020 · US
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Preparation with nitric acid or nitrogen oxides
Preparation with nitric acid or nitrogen oxides · 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 | C01F11/38 |
| Official title | Preparation with nitric acid or nitrogen oxides |
| Display label | Preparation with nitric acid or nitrogen oxides |
| Total patents | 2 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Not enough yearly data to assess filing trend yet.
| Year | Patents |
|---|---|
| 2020 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.