Controlling the rheology of a metal ore residue
US-12122884-B2 · Oct 22, 2024 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C02F1/56 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 653 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 44 |
| 2016 | 49 |
| 2017 | 67 |
| 2018 | 69 |
| 2019 | 69 |
| 2020 | 73 |
| 2021 | 80 |
| 2022 | 57 |
| 2023 | 48 |
| 2024 | 45 |
| 2025 | 38 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of treating produced or flowback water with nucleophilic agent to deactivate breaker
US-9505044-B2 · Nov 29, 2016 · US
Processes for recovering organic solvent extractant from solid-stabilized emulsions formed in hydrometallurgical solvent extraction circuits
US-9474990-B2 · Oct 25, 2016 · US
Polymers for flocculation, dewatering and consolidation of oil sands fluid fine tailings, mine tailings and solid particulate suspensions
US-2016280572-A1 · Sep 29, 2016 · US
Production of ultra-high-density brines
US-2016244349-A1 · Aug 25, 2016 · US
Water treatment method and water treatment flocculant
US-9403704-B2 · Aug 2, 2016 · US
Water treatment method and apparatus therefor
US-9403705-B2 · Aug 2, 2016 · US
Treatment of waste products with anaerobic digestion
US-2016214879-A1 · Jul 28, 2016 · US
Installation for water treatment by flotation and corresponding water treatment method
US-9376331-B2 · Jun 28, 2016 · US
Water treatment device and water treatment method
US-2016145132-A1 · May 26, 2016 · US
Hyperbranched polymers
US-2016137784-A1 · May 19, 2016 · US
Polymer coagulants
US-2016130375-A1 · May 12, 2016 · US
Method of monitoring and controlling dewatering of oil sands tailings
US-2016100135-A1 · Apr 7, 2016 · US
Manufacture of oxidatively modified carbon (omc) and its use for capture of radionuclides and metals from water
US-2016075567-A1 · Mar 17, 2016 · US
Organic disulfide based corrosion inhibitors
US-9238588-B2 · Jan 19, 2016 · US
Micro-sieve separation and cod diversion in wastewater treatment
US-2016002083-A1 · Jan 7, 2016 · US
Air pollution control system and air pollution control method
US-2015375166-A1 · Dec 31, 2015 · US
Fouling inhibitor, filtration membrane and method for producing same
US-2015367290-A1 · Dec 24, 2015 · US
Water treatment method
US-2015344339-A1 · Dec 3, 2015 · US
Formaldehyde-free lignin-amine coagulants
US-9181405-B2 · Nov 10, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/56?
- CPC C02F1/56 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F1/56 (Chemistry & Metallurgy)?
- Our database includes 653 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/56 growing?
- Publication counts under this code: 45 in 2024 vs 38 in 2025 (latest complete years).