Method for manufacturing (2,2-dimethyl-1,3-dioxolan-4-yl)methanol
US-12577220-B2 · Mar 17, 2026 · US
Free hydroxyl or mercaptan · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D317/20 |
| Official title | Free hydroxyl or mercaptan |
| Display label | Free hydroxyl or mercaptan |
| Total patents | 40 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12577220-B2 · Mar 17, 2026 · US
US-2026015329-A1 · Jan 15, 2026 · US
US-2024368068-A1 · Nov 7, 2024 · US
US-2023242480-A1 · Aug 3, 2023 · US
US-2023242500-A1 · Aug 3, 2023 · US
US-11661417-B2 · May 30, 2023 · US
US-2023061028-A1 · Mar 2, 2023 · US
US-11530295-B2 · Dec 20, 2022 · US
US-11278559-B2 · Mar 22, 2022 · US
US-11186560-B2 · Nov 30, 2021 · US
US-11124881-B2 · Sep 21, 2021 · US
US-2021246560-A1 · Aug 12, 2021 · US
US-2021198229-A1 · Jul 1, 2021 · US
US-10941156-B2 · Mar 9, 2021 · US
US-10894781-B2 · Jan 19, 2021 · US
US-2020291178-A1 · Sep 17, 2020 · US
US-10626217-B2 · Apr 21, 2020 · US
US-2019388452-A1 · Dec 26, 2019 · US
US-10494328-B2 · Dec 3, 2019 · US
US-10449210-B2 · Oct 22, 2019 · US
Answers are generated from the same data shown on this page.