Ascorbic acid derivative or salt thereof, additive for polymerization initiation, polymerization initiator, curable composition preparation kit, curable composition, cured product, and dental material
US-2025223282-A1 · Jul 10, 2025 · US
Three oxygen atoms, e.g. ascorbic acid · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D307/62 |
| Official title | Three oxygen atoms, e.g. ascorbic acid |
| Display label | Three oxygen atoms, e.g. ascorbic acid |
| Total patents | 36 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025223282-A1 · Jul 10, 2025 · US
US-2025066518-A1 · Feb 27, 2025 · US
US-2025034289-A1 · Jan 30, 2025 · US
US-2024310334-A1 · Sep 19, 2024 · US
US-2024310335-A1 · Sep 19, 2024 · US
US-2024254529-A1 · Aug 1, 2024 · US
US-12029790-B2 · Jul 9, 2024 · US
US-2024018566-A1 · Jan 18, 2024 · US
US-2023049162-A1 · Feb 16, 2023 · US
US-11097951-B2 · Aug 24, 2021 · US
US-2021247401-A1 · Aug 12, 2021 · US
US-2021069336-A1 · Mar 11, 2021 · US
US-10836844-B2 · Nov 17, 2020 · US
US-10766842-B2 · Sep 8, 2020 · US
US-2019284121-A1 · Sep 19, 2019 · US
US-10239902-B2 · Mar 26, 2019 · US
US-2018312613-A1 · Nov 1, 2018 · US
US-2018236536-A1 · Aug 23, 2018 · US
US-9981933-B2 · May 29, 2018 · US
US-9902707-B2 · Feb 27, 2018 · US
Answers are generated from the same data shown on this page.