Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet
US-12442053-B2 · Oct 14, 2025 · US
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containing also hexavalent chromium compounds
containing also hexavalent chromium compounds · 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 | C23C22/37 |
| Official title | containing also hexavalent chromium compounds |
| Display label | containing also hexavalent chromium compounds |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aluminum and aluminum alloy electroplated coatings
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Can steel sheet and method for producing same
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Aluminum and aluminum alloy electroplated coatings
US-2023392275-A1 · Dec 7, 2023 · US
Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet
US-2023392223-A1 · Dec 7, 2023 · US
Aluminum and aluminum alloy electroplated coatings
US-11661665-B2 · May 30, 2023 · US
Flame treatment device, apparatus for producing coated metal plate, and method for producing coated metal plate
US-11241714-B2 · Feb 8, 2022 · US
Acidic treatment liquid processing apparatus, acidic treatment liquid processing method, surface treatment system, and surface treatment method
US-2021339199-A1 · Nov 4, 2021 · US
Aluminum and aluminum alloy electroplated coatings
US-2021340686-A1 · Nov 4, 2021 · US
Steel sheet for cans, and production method therefor
US-10968528-B2 · Apr 6, 2021 · US
Flame treatment device, apparatus for producing coated metal plate, and method for producing coated metal plate
US-2021039132-A1 · Feb 11, 2021 · US
Copper foil having improved adhesive force, electrode including the same, secondary battery including the same, and method of manufacturing the same
US-10741848-B2 · Aug 11, 2020 · US
Steel sheet for cans, and production method therefor
US-2020149179-A1 · May 14, 2020 · US
Reduction of chromium waste in an aluminum conversion coat processing line
US-10472720-B2 · Nov 12, 2019 · US
Copper foil having improved adhesive force, electrode including the same, secondary battery including the same, and method of manufacturing the same
US-2018261850-A1 · Sep 13, 2018 · US
Reduction of Chromium Waste in an Aluminum Conversion Coat Processing Line
US-2017241022-A1 · Aug 24, 2017 · US
Reduction of chromium waste water in an aluminum conversion coat processing line
US-9683293-B2 · Jun 20, 2017 · US
Reduction of chromium waste water in an aluminum conversion coat processing line
US-2015040799-A1 · Feb 12, 2015 · US