Surface-treated steel sheet
US-2024044013-A1 · Feb 8, 2024 · 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 | C23C22/07 |
| Official title | containing phosphates |
| Display label | containing phosphates |
| Total patents | 238 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 11 |
| 2018 | 22 |
| 2019 | 21 |
| 2020 | 20 |
| 2021 | 17 |
| 2022 | 31 |
| 2023 | 21 |
| 2024 | 35 |
| 2025 | 28 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Surface treatment of metal substrates
US-10196744-B2 · Feb 5, 2019 · US
Method for specifically adjusting the electrical conductivity of conversion coatings
US-2018334748-A9 · Nov 22, 2018 · US
Metal-plastic composite and method for producing such a composite
US-2018326703-A1 · Nov 15, 2018 · US
Metal pretreatment compositions comprising silanes and organophosporus acids
US-10106689-B2 · Oct 23, 2018 · US
Insulative coating processing liquid and method for manufacturing metal having insulative coating
US-2018251899-A1 · Sep 6, 2018 · US
Grain-oriented electrical steel sheet and manufacturing method therefor
US-2018230565-A1 · Aug 16, 2018 · US
Shape-forming packaging material, and method for producing power storage device with surface printing
US-2018233712-A1 · Aug 16, 2018 · US
A Method for the Manufacture of a Phosphatable Part Starting from a Steel Sheet Coated with a Metallic Coating Based on Aluminum
US-2018216218-A1 · Aug 2, 2018 · US
Steel sheet for containers, and method for producing steel sheet for containers
US-2018187324-A1 · Jul 5, 2018 · US
Surface treatment agent, surface treatment method, and surface treated metal material
US-2018187312-A1 · Jul 5, 2018 · US
Surface-treated steel sheet for fuel tanks
US-2018187313-A1 · Jul 5, 2018 · US
Insulating coating for electrical steel sheet
US-2018155840-A1 · Jun 7, 2018 · US
Method and reagent for treating bare copper wire and surface-treated copper wire
US-2018142358-A1 · May 24, 2018 · US
Surface treatment of metal substrates
US-2018119287-A1 · May 3, 2018 · US
Method for specifically adjusting the electrical conductivity of conversion coatings
US-2018112314-A1 · Apr 26, 2018 · US
Method for nickel-free phosphating metal surfaces
US-2018112313-A1 · Apr 26, 2018 · US
Non-oriented electrical steel sheet and manufacturing method thereof
US-9934894-B2 · Apr 3, 2018 · US
Method for corrosion-protective serial surface treatment of metallic components
US-9932677-B2 · Apr 3, 2018 · US
Hot-dip zinc-based plated steel sheet
US-2018079174-A1 · Mar 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/07?
- CPC C23C22/07 is the Cooperative Patent Classification code for “containing phosphates.”
- How many patents are filed under CPC C23C22/07 (containing phosphates)?
- Our database includes 238 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/07 growing?
- Publication counts under this code: 35 in 2024 vs 28 in 2025 (latest complete years).