Acetal-based compound, acetal-based prepolymer, acetal-based polymer, and photoresist composition comprising the same
US-12503433-B2 · Dec 23, 2025 · US
Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G2/00 |
| Official title | Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances |
| Display label | Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12503433-B2 · Dec 23, 2025 · US
US-2023174471-A1 · Jun 8, 2023 · US
US-2020325263-A1 · Oct 15, 2020 · US
US-10490850-B2 · Nov 26, 2019 · US
US-2019190067-A1 · Jun 20, 2019 · US
US-2018265695-A1 · Sep 20, 2018 · US
US-10030100-B2 · Jul 24, 2018 · US
US-2016311974-A1 · Oct 27, 2016 · US
US-2016083499-A1 · Mar 24, 2016 · US
US-9290611-B2 · Mar 22, 2016 · US
US-9249292-B2 · Feb 2, 2016 · US
US-2015376397-A1 · Dec 31, 2015 · US