Water treatment method and water treatment apparatus
US-2024383788-A1 · Nov 21, 2024 · US
containing phosphorus
containing phosphorus · 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 | C02F5/14 |
| Official title | containing phosphorus |
| Display label | containing phosphorus |
| Total patents | 111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 11 |
| 2018 | 10 |
| 2019 | 9 |
| 2020 | 13 |
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 13 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Corrosion inhibitor compositions and methods of using same
US-10876212-B2 · Dec 29, 2020 · US
Nanosized scale inhibitors for increasing oilfield scale inhibition treatment lifetime
US-2020385629-A1 · Dec 10, 2020 · US
Additive for corrosion control
US-2020378013-A1 · Dec 3, 2020 · US
Composition and Method for Stabilizing Iron Compounds in an Aqueous Environment, and Use of Composition
US-2020354248-A1 · Nov 12, 2020 · US
Biocidal compositions including a phosphonium quaternary cationic surfactant and methods for using same
US-2020299155-A1 · Sep 24, 2020 · US
Composition and method for inhibition of sulfide scales
US-10633573-B2 · Apr 28, 2020 · US
Scale control in phosphoric acid production and handling plants
US-10584049-B2 · Mar 10, 2020 · US
Combined uses of a phosphorous compound for iron sulphide dissolution and bacterial control
US-2020032125-A1 · Jan 30, 2020 · US
Process for inhibition of sulphide scales
US-10472557-B2 · Nov 12, 2019 · US
Composition and Method for Inhibiting Corrosion
US-2019308897-A1 · Oct 10, 2019 · US
Composition and method for inhibiting corrosion
US-10351453-B2 · Jul 16, 2019 · US
Hydrophosphorylated polycarboxylic acids and their synergistic combinations as corrosion and scale inhibitors
US-2019177616-A1 · Jun 13, 2019 · US
Particles containing one or more controlled release cross-linked active agents
US-10287482-B2 · May 14, 2019 · US
Use of phosphotartaric acid and the salts thereof for the treatment of water in water-conducting systems
US-10287199-B2 · May 14, 2019 · US
Customizable multi-stage water treatment system
US-2019135656-A1 · May 9, 2019 · US
Corrosion inhibitor compositions and methods of using same
US-2019136388-A1 · May 9, 2019 · US
Method for treating an effluent supersaturated with calcium carbonate in the presence of phosphonate precipitation-inhibiting products
US-2019023595-A1 · Jan 24, 2019 · US
Customizable multi-stage water treatment system
US-10155669-B2 · Dec 18, 2018 · US
Process for the treatment of a flow of waste water by low-pressure filtration
US-10118850-B2 · Nov 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F5/14?
- CPC C02F5/14 is the Cooperative Patent Classification code for “containing phosphorus.”
- How many patents are filed under CPC C02F5/14 (containing phosphorus)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC C02F5/14 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).