Interference pigments
US-2026049218-A1 · Feb 19, 2026 · US
Wet methods, e.g. co-precipitation
Wet methods, e.g. co-precipitation · 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 | C09C2220/10 |
| Official title | Wet methods, e.g. co-precipitation |
| Display label | Wet methods, e.g. co-precipitation |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 5 |
| 2024 | 1 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Weather stable pearlescent pigments
US-12479999-B2 · Nov 25, 2025 · US
Weather stable pearlescent pigments
US-2025257219-A1 · Aug 14, 2025 · US
Coated metal effect pigments, method of production and use thereof
US-2025236736-A2 · Jul 24, 2025 · US
Al2o3 flakes
US-2025188293-A1 · Jun 12, 2025 · US
High chromaticity pigment flakes and foils
US-2025145832-A1 · May 8, 2025 · US
High chromaticity pigment flakes and foils
US-12187900-B2 · Jan 7, 2025 · US
Coated metal effect pigments, method of production and use thereof
US-2024228788-A1 · Jul 11, 2024 · US
Effect pigments
US-11479681-B2 · Oct 25, 2022 · US
Effect pigments
US-11459469-B2 · Oct 4, 2022 · US
Effect pigments
US-11453789-B2 · Sep 27, 2022 · US
Surface-modified effect pigment and nail varnish composition
US-11377565-B2 · Jul 5, 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
Surface-modified effect pigment and nail varnish composition
US-11111390-B2 · Sep 7, 2021 · US
Carbon black in effect pigments
US-11034841-B2 · Jun 15, 2021 · US
Method for manufacturing a special effect pigment
US-2020325341-A1 · Oct 15, 2020 · US
Surface-modified effect pigment and nail varnish composition
US-2020317927-A1 · Oct 8, 2020 · US
Effect pigments and structural colorants incorporating fluorescent particles
US-10781367-B2 · Sep 22, 2020 · US
Article including at least one metal portion
US-2020189234-A1 · Jun 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C2220/10?
- CPC C09C2220/10 is the Cooperative Patent Classification code for “Wet methods, e.g. co-precipitation.”
- How many patents are filed under CPC C09C2220/10 (Wet methods, e.g. co-precipitation)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C09C2220/10 growing?
- Publication counts under this code: 1 in 2024 vs 6 in 2025 (latest complete years).