Composition including dual cavity color shifting pigments
US-2026098158-A1 · Apr 9, 2026 · US
Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers
Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers · 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 | C09C2200/304 |
| Official title | Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers |
| Display label | Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 5 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 10 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Asymmetric pigment
US-12552940-B2 · Feb 17, 2026 · US
Deep bluish-black effect pigments
US-12503604-B2 · Dec 23, 2025 · US
Composition including a color shifting pigment having a different particle size
US-2025382467-A1 · Dec 18, 2025 · US
Passivated pigment with core encapsulation
US-2025340740-A1 · Nov 6, 2025 · US
Composition including a color shifting pigment having a different particle size
US-12365802-B2 · Jul 22, 2025 · US
Nanoencapsulation methods for forming multilayer thin film structures and multilayer thin films formed therefrom
US-12066595-B2 · Aug 20, 2024 · US
Effect pigments
US-11773270-B2 · Oct 3, 2023 · US
Deep bluish-black effect pigments
US-2022162449-A1 · May 26, 2022 · US
Interference pigment, and cosmetic preparation, coating material, ink, and resin composition each containing same
US-11324671-B2 · May 10, 2022 · US
Effect pigments based on artificially produced substrates with a narrow size distribution
US-11299636-B2 · Apr 12, 2022 · US
Article including at least one metal portion
US-11118061-B2 · Sep 14, 2021 · US
Nanoencapsulation methods for forming multilayer thin film structures and multilayer thin films formed therefrom
US-2021263196-A1 · Aug 26, 2021 · US
Composition including a color shifting pigment having a different particle size
US-2021163752-A1 · Jun 3, 2021 · US
Asymmetric pigment
US-2021147688-A1 · May 20, 2021 · US
Nanoencapsulation methods for forming multilayer thin film structures and multilayer thin films formed therefrom
US-11009630-B2 · May 18, 2021 · US
Composition including dual cavity color shifting pigments
US-2021102072-A1 · Apr 8, 2021 · US
Gold-coloured effect pigments having high chroma and high brilliancy, method for the production and use thereof
US-10947391-B2 · Mar 16, 2021 · US
Effect pigments having high transparency, high chroma and high brilliancy, method for the production and use thereof
US-10934436-B2 · Mar 2, 2021 · US
Asymmetric pigment
US-10899930-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C2200/304?
- CPC C09C2200/304 is the Cooperative Patent Classification code for “Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers.”
- How many patents are filed under CPC C09C2200/304 (Thickness of intermediate layers adjacent to the core, e.g. metallic layers, protective layers, rutilisation enhancing layers or reflective layers)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC C09C2200/304 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).