Casing structure of electronic device and manufacturing method thereof
US-12584234-B2 · Mar 24, 2026 · US
Polyepoxides
Polyepoxides · 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 | C09D5/443 |
| Official title | {Polyepoxides} |
| Display label | Polyepoxides |
| Total patents | 50 |
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 | 6 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 4 |
| 2022 | 2 |
| 2024 | 8 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of improving the corrosion resistance of a metal substrate
US-12546024-B2 · Feb 10, 2026 · US
Spindle motor
US-12387749-B2 · Aug 12, 2025 · US
Vehicle interior component having coated frame for adhesive bonding without primer
US-2024399717-A1 · Dec 5, 2024 · US
Modified epoxy resin and electrodeposition coating material
US-2024384116-A1 · Nov 21, 2024 · US
Spindle motor
US-2024257831-A1 · Aug 1, 2024 · US
Edge protection for electrocoat
US-11976210-B2 · May 7, 2024 · US
Method of improving the corrosion resistance of a metal substrate
US-2024141538-A1 · May 2, 2024 · US
Coated metal alloy substrates and process of production thereof
US-11952665-B2 · Apr 9, 2024 · US
Casing structure of electronic device and manufacturing method thereof
US-2024068119-A1 · Feb 29, 2024 · US
Method of improving the corrosion resistance of a metal substrate
US-11905610-B2 · Feb 20, 2024 · US
Coated metal alloy substrates and process of production thereof
US-2022112609-A1 · Apr 14, 2022 · US
Method of treating surface of metal base, metallic material treated by the surface treatment method, and method of coating the metallic material
US-11293102-B2 · Apr 5, 2022 · US
Epoxy resin emulsions for electrocoating
US-11186734-B2 · Nov 30, 2021 · US
Clear composition for alumium foot rest and coating method for aluminium foot rest
US-11091665-B2 · Aug 17, 2021 · US
Electrodeposition coating composition and electrodeposition coating method
US-11041079-B2 · Jun 22, 2021 · US
Edge protection for electrocoat
US-2021108104-A1 · Apr 15, 2021 · US
Epoxy resin emulsions for electrocoating
US-2020377740-A1 · Dec 3, 2020 · US
Method of improving the corrosion resistance of a metal substrate
US-2020270758-A1 · Aug 27, 2020 · US
Electrodepositable coating composition having improved crater control
US-10717883-B2 · Jul 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D5/443?
- CPC C09D5/443 is the Cooperative Patent Classification code for “Polyepoxides.”
- How many patents are filed under CPC C09D5/443 (Polyepoxides)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC C09D5/443 growing?
- Publication counts under this code: 8 in 2024 vs 1 in 2025 (latest complete years).