Composition including dual cavity color shifting pigments
US-2026098158-A1 · Apr 9, 2026 · US
Thickness of an absorbing layer
Thickness of an absorbing layer · 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 | C09C2200/306 |
| Official title | Thickness of an absorbing layer |
| Display label | Thickness of an absorbing layer |
| Total patents | 53 |
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 |
| 2016 | 3 |
| 2017 | 9 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 10 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 7 |
| 2026 | 2 |
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
Composition including a color shifting pigment having a different particle size
US-12365802-B2 · Jul 22, 2025 · US
Thin film interference pigments with a coating of nanoparticles
US-12298470-B2 · May 13, 2025 · US
High chromaticity pigment flakes and foils
US-2025145832-A1 · May 8, 2025 · US
High chroma flakes
US-12275852-B2 · Apr 15, 2025 · US
High chromaticity pigment flakes and foils
US-12187900-B2 · Jan 7, 2025 · US
Optical devices with colored reflector layer
US-2024369850-A1 · Nov 7, 2024 · US
Nanoencapsulation methods for forming multilayer thin film structures and multilayer thin films formed therefrom
US-12066595-B2 · Aug 20, 2024 · US
Optical devices with colored reflector layer
US-12044859-B2 · Jul 23, 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
High chroma flakes
US-2022089878-A1 · Mar 24, 2022 · US
High chroma flakes
US-11214689-B2 · Jan 4, 2022 · US
Pigment mixture
US-2021322285-A1 · Oct 21, 2021 · US
LiDAR reflecting dark colored pigments and vehicles comprising the same
US-11118062-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
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C2200/306?
- CPC C09C2200/306 is the Cooperative Patent Classification code for “Thickness of an absorbing layer.”
- How many patents are filed under CPC C09C2200/306 (Thickness of an absorbing layer)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC C09C2200/306 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).