Anticorrosive composition
US-2026028284-A1 · Jan 29, 2026 · US
containing phosphates
containing phosphates · 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 | C23F11/188 |
| Official title | {containing phosphates} |
| Display label | containing phosphates |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Antifreeze concentrate with corrosion protection and aqueous coolant composition produced therefrom
US-2025346794-A1 · Nov 13, 2025 · US
Anticorrosive composition
US-12454488-B2 · Oct 28, 2025 · US
Anticorrosive composition
US-12428346-B2 · Sep 30, 2025 · US
Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same
US-12365989-B2 · Jul 22, 2025 · US
Solid coolant concentrates and production thereof
US-12180413-B2 · Dec 31, 2024 · US
Solid coolant concentrates and production thereof
US-2024409801-A1 · Dec 12, 2024 · US
Solid Molded Sulfite-Based Oxygen Scavenger Composition and Method of Manufacutre
US-2024295031-A1 · Sep 5, 2024 · US
Anticorrosive composition
US-2024174866-A1 · May 30, 2024 · US
Method of Inhibiting Corrosion of a Metal in an Industrial Water System
US-2023416128-A1 · Dec 28, 2023 · US
One-stage process for zinc phosphating
US-2023220559-A1 · Jul 13, 2023 · US
Resource-saving method for zinc phosphating of a metal surface
US-2023175138-A1 · Jun 8, 2023 · US
Low temperature-cured corrosion inhibition coating
US-11613813-B2 · Mar 28, 2023 · US
Corrosion inhibitor formulation for geothermal reinjection well
US-11525186-B2 · Dec 13, 2022 · US
Method for zinc phosphating metal components in series so as to form layers
US-11486044-B2 · Nov 1, 2022 · US
Method for zinc phosphating metal components in series in a sludge-free manner so as to form layers
US-11479865-B2 · Oct 25, 2022 · US
Anticorrosive composition
US-2022306537-A1 · Sep 29, 2022 · US
Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same
US-2022195604-A1 · Jun 23, 2022 · US
Corrosion control compositions and methods of mitigating corrosion
US-11155927-B2 · Oct 26, 2021 · US
Synergistic corrosion inhibitor compositions
US-10889723-B2 · Jan 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F11/188?
- CPC C23F11/188 is the Cooperative Patent Classification code for “containing phosphates.”
- How many patents are filed under CPC C23F11/188 (containing phosphates)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C23F11/188 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).