Compositions and methods for metal pre-treatment
US-2022289892-A1 · Sep 15, 2022 · US
Orthophosphates
Orthophosphates · 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 | C23C22/08 |
| Official title | Orthophosphates |
| Display label | Orthophosphates |
| Total patents | 138 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 11 |
| 2021 | 10 |
| 2022 | 28 |
| 2023 | 11 |
| 2024 | 21 |
| 2025 | 22 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchange tube of waste heat boiler
US-2022243908-A1 · Aug 4, 2022 · US
Method for manufacturing grain-oriented electrical steel sheet
US-2022119907-A1 · Apr 21, 2022 · US
Method for producing grain oriented electrical steel sheet
US-2022098689-A1 · Mar 31, 2022 · US
Grain oriented electrical steel sheet, forming method for insulation coating of grain oriented electrical steel sheet, and producing method for grain oriented electrical steel sheet
US-2022090241-A1 · Mar 24, 2022 · US
Grain-oriented electrical steel sheet and method for manufacturing the same
US-2022090227-A1 · Mar 24, 2022 · US
Surface treatment solution composition containing trivalent chromium and inorganic compound, and method for manufacturing hot dip galvanized steel sheet surface-treated using same
US-2021388504-A1 · Dec 16, 2021 · US
Grain-oriented electrical steel sheet and production method for grain-oriented electrical steel sheet
US-11180834-B2 · Nov 23, 2021 · US
Insulating coating treatment liquid, and grain-oriented electrical steel sheet having insulating coating and method for producing the same
US-2021317319-A1 · Oct 14, 2021 · US
Method for manufacturing a grain-oriented electrical steel sheet
US-2021310096-A1 · Oct 7, 2021 · US
Grain-oriented magnetic steel sheets having chromium-free insulating tension coating, and methods for producing such steel sheets
US-2021287834-A1 · Sep 16, 2021 · US
Electrical steel sheet having insulating coating, method for producing the same, transformer core and transformer using the electrical steel sheet, and method for reducing dielectric loss in transformer
US-2021202145-A1 · Jul 1, 2021 · US
Production method for magnesium-containing metal material provided with coating
US-2021172067-A1 · Jun 10, 2021 · US
Grain-oriented electrical steel sheet and production method for grain-oriented electrical steel sheet
US-10968521-B2 · Apr 6, 2021 · US
Insulating-coated oriented magnetic steel sheet and method for manufacturing same
US-10920323-B2 · Feb 16, 2021 · US
Insulating coating-attached electrical steel sheet and manufacturing method therefor
US-2021035718-A1 · Feb 4, 2021 · US
Aluminum alloy fastening member and method for producing aluminum alloy fastening member
US-2020399762-A1 · Dec 24, 2020 · US
Surface treated steel sheet for fuel tank
US-10837118-B2 · Nov 17, 2020 · US
Oriented electrical steel sheet and method for producing same
US-2020354821-A1 · Nov 12, 2020 · US
Coating solution for forming insulating film for grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet
US-2020354582-A1 · Nov 12, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/08?
- CPC C23C22/08 is the Cooperative Patent Classification code for “Orthophosphates.”
- How many patents are filed under CPC C23C22/08 (Orthophosphates)?
- Our database includes 138 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/08 growing?
- Publication counts under this code: 21 in 2024 vs 22 in 2025 (latest complete years).