Security element
US-11945254-B2 · Apr 2, 2024 · US
Copper
Copper · 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 | C09C1/627 |
| Official title | {Copper} |
| Display label | Copper |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 10 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pigments having a vapor deposited colorant
US-11891524-B2 · Feb 6, 2024 · US
Cubic boron nitride powder and manufacturing method therefor
US-2024026161-A1 · Jan 25, 2024 · US
Hybrid colored metallic pigment
US-11802210-B2 · Oct 31, 2023 · US
Zinc pigment for waterborne corrosion coatings
US-2023340327-A1 · Oct 26, 2023 · US
Pigment Composition And Coloring Method
US-2023312945-A1 · Oct 5, 2023 · US
Coloring Composition, Coloring Method, And Pigment Dispersion
US-2023303848-A1 · Sep 28, 2023 · US
Low Temperature Antioxidant Reductant for Copper Nanoparticles
US-2023272232-A1 · Aug 31, 2023 · US
Effect pigments coated with organic binders for powder paints, and a method for producing said coated effect pigments and their use
US-2023250298-A1 · Aug 10, 2023 · US
Effect pigments coated with organic binders for powders paints, and a method for producing said coated effect pigments and their use
US-11702552-B2 · Jul 18, 2023 · US
Apparatus for making flakes
US-2023150024-A1 · May 18, 2023 · US
Method for making flakes
US-2023141815-A1 · May 11, 2023 · US
Metal particle composition, method for producing metal particle composition, and paste
US-2023060171-A1 · Mar 2, 2023 · US
Lamellar particles with functional coating
US-11493672-B2 · Nov 8, 2022 · US
Method for producing effect pigments
US-2022289989-A1 · Sep 15, 2022 · US
Composition, metal effect pigments, and method for producing metal effect pigments
US-2022282057-A1 · Sep 8, 2022 · US
Lamellar particles with functional coating
US-2022268973-A1 · Aug 25, 2022 · US
Surface-modified effect pigment and nail varnish composition
US-11377565-B2 · Jul 5, 2022 · US
Security element
US-2022097437-A1 · Mar 31, 2022 · US
Near infrared transmitting copper oxide nanoparticles
US-2022017379-A1 · Jan 20, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C1/627?
- CPC C09C1/627 is the Cooperative Patent Classification code for “Copper.”
- How many patents are filed under CPC C09C1/627 (Copper)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC C09C1/627 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).