Diphenylamine-linked chiral bis(oxazoline) ligand without C2-symmetry, synthesis method and application thereof
US-12545651-B2 · Feb 10, 2026 · US
with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D263/10 |
| Official title | with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms |
| Display label | with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms |
| Total patents | 16 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12545651-B2 · Feb 10, 2026 · US
US-11505650-B2 · Nov 22, 2022 · US
US-2022227719-A1 · Jul 21, 2022 · US
US-11186563-B2 · Nov 30, 2021 · US
US-2021214498-A1 · Jul 15, 2021 · US
US-10793520-B2 · Oct 6, 2020 · US
US-2019315710-A1 · Oct 17, 2019 · US
US-2019225577-A1 · Jul 25, 2019 · US
US-10266503-B1 · Apr 23, 2019 · US
US-9981977-B2 · May 29, 2018 · US
US-9580384-B2 · Feb 28, 2017 · US
US-9102601-B2 · Aug 11, 2015 · US
US-2015203448-A1 · Jul 23, 2015 · US
US-9073838-B2 · Jul 7, 2015 · US
US-9029601-B2 · May 12, 2015 · US
US-2015080386-A1 · Mar 19, 2015 · US