Methods and compositions for remediating cyanuric acid in aqueous liquids
US-12497315-B2 · Dec 16, 2025 · US
Cyanides
Cyanides · 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 | C02F2101/18 |
| Official title | Cyanides |
| Display label | Cyanides |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treatment method of wastewater containing ferricyanide complex and oxalate
US-12187630-B2 · Jan 7, 2025 · US
Compositions and Methods for Flocculation
US-2024417290-A1 · Dec 19, 2024 · US
Catalytic oxidation system and process for selective cyanide removal
US-12116295-B2 · Oct 15, 2024 · US
Treatment method of wastewater containing ferricyanide complex and oxalate
US-2024270613-A1 · Aug 15, 2024 · US
Methods for treating selenocyanate in wastewater
US-11987512-B2 · May 21, 2024 · US
Processes and systems for treating sour water
US-11897794-B2 · Feb 13, 2024 · US
Process for removing cyanide from a cyanide-bearing aqueous fluid
US-2023399241-A1 · Dec 14, 2023 · US
Method for the treatment of wastewaters
US-11713264-B2 · Aug 1, 2023 · US
Method and system for the treatment of cyanide-containing fluids
US-11667553-B2 · Jun 6, 2023 · US
Processes and systems for treating sour water
US-2023100630-A1 · Mar 30, 2023 · US
Processes and systems for treating sour water
US-11542184-B2 · Jan 3, 2023 · US
Methods and compositions for remediating cyanuric acid in aqueous liquids
US-2022411301-A1 · Dec 29, 2022 · US
Modified sulfuric acid and uses thereof
US-2022267178-A1 · Aug 25, 2022 · US
Method for producing ultra-fine bubble-containing liquid, ultra-fine bubble-containing liquid, method for utilizing ultra-fine bubbles, and device for utilizing ultra-fine bubbles
US-2022241737-A1 · Aug 4, 2022 · US
Methods for treating selenocyanate in wastewater
US-2022144674-A1 · May 12, 2022 · US
Gold mine cyanide tailing disposal method using paste technology
US-11267744-B2 · Mar 8, 2022 · US
Processes and systems for treating sour water to remove sulfide compounds
US-11254592-B2 · Feb 22, 2022 · US
Sour water treatment
US-11247919-B2 · Feb 15, 2022 · US
Methods for treating selenocyanate in wastewater
US-11235994-B2 · Feb 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2101/18?
- CPC C02F2101/18 is the Cooperative Patent Classification code for “Cyanides.”
- How many patents are filed under CPC C02F2101/18 (Cyanides)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC C02F2101/18 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).