Acetal-based compound, acetal-based prepolymer, acetal-based polymer, and photoresist composition comprising the same
US-12503433-B2 · Dec 23, 2025 · US
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by substitution of halogen only
by substitution of halogen only · 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 | C07C41/52 |
| Official title | by substitution of halogen only |
| Display label | by substitution of halogen only |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclic compound having iodine atom
US-2025250216-A1 · Aug 7, 2025 · US
Haloacetaldehyde alkyl 2-cyclopentenyl acetal compound and a process for preparing the same, a process for preparing a (2-cyclopentenyl)acetate ester compound therefrom, and a process for preparing a (2-cyclopentenyl)acetic acid compound therefrom
US-11840511-B2 · Dec 12, 2023 · US
Acetal-based compound, acetal-based prepolymer, acetal-based polymer, and photoresist composition comprising the same
US-2023174471-A1 · Jun 8, 2023 · US
Haloacetaldehyde alkyl 2-cyclopentenyl acetal compound and a process for preparing the same, a process for preparing a (2-cyclopentenyl)acetate ester compound therefrom, and a process for preparing a (2-cyclopentenyl)acetic acid compound therefrom
US-2023002304-A1 · Jan 5, 2023 · US
Process for preparing an alkoxymethyl alkynyl ether compound having a terminal triple bond
US-11384041-B2 · Jul 12, 2022 · US
Process for preparing an alkoxymethyl alkynyl ether compound having a terminal triple bond
US-2021198172-A1 · Jul 1, 2021 · US
Carbon nanobelt and production method therefor
US-2019375692-A1 · Dec 12, 2019 · US
1-halo-6,9-pentadecadiene and method for producing (7Z,10Z)-7,10-hexadecadienal
US-10138191-B2 · Nov 27, 2018 · US
1-halo-6,9-pentadecadiene and method for producing (7z,10z)-7,10-hexadecadienal
US-2018305284-A1 · Oct 25, 2018 · US