Zinc oxide powder, liquid dispersion, coating material, and cosmetic
US-2025197239-A1 · Jun 19, 2025 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C09C3/045 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing effect pigment pastes using a vibrator
US-12312488-B2 · May 27, 2025 · US
Method for producing transparent ceramics
US-12297119-B2 · May 13, 2025 · US
Carbon material granulated product, method for producing carbon material granulated product, and conductive resin composition
US-2025109278-A1 · Apr 3, 2025 · US
Simple, scalable method for dispersing mxenes in nonpolar organic solvents
US-2025002725-A1 · Jan 2, 2025 · US
Effervescent colorant tablets
US-2024417583-A1 · Dec 19, 2024 · US
UV-Vis radiation radically curable security inks
US-12115808-B2 · Oct 15, 2024 · US
Aluminum nitride granular powder and resin composition
US-2024026119-A1 · Jan 25, 2024 · US
Insulated structures and methods of making the same
US-2023175633-A1 · Jun 8, 2023 · US
Method for manufacturing granulated silica
US-11603470-B2 · Mar 14, 2023 · US
Method for producing pigment composition
US-2022372324-A1 · Nov 24, 2022 · US
Uv-vis radiation radically curable security inks
US-2022305835-A1 · Sep 29, 2022 · US
Method for producing effect pigment pastes using a vibrator
US-2022289998-A1 · Sep 15, 2022 · US
Methods of preparing structural colorants
US-2022145086-A1 · May 12, 2022 · US
Compacted polymer-based filler material for plastic rotomoulding
US-2022106458-A1 · Apr 7, 2022 · US
Process for manufacturing boron nitride agglomerates
US-11254820-B2 · Feb 22, 2022 · US
Method for producing transparent ceramics
US-2022017377-A1 · Jan 20, 2022 · US
Process for the preparation of flocculated filler particles
US-11155965-B2 · Oct 26, 2021 · US
Method of producing glass-coated aluminum nitride particles and method of producing heat-dissipating resin composition comprising these glass-coated aluminum nitride particles
US-2021238465-A1 · Aug 5, 2021 · US
Method for manufacturing granulated silica
US-2020317928-A1 · Oct 8, 2020 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09C3/045?
- CPC C09C3/045 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C09C3/045 (Chemistry & Metallurgy)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C09C3/045 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).