Materials for organic electroluminescent devices
US-2025374826-A1 · Dec 4, 2025 · US
without other substituents attached to the ring system · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D279/26 |
| Official title | without other substituents attached to the ring system |
| Display label | without other substituents attached to the ring system |
| Total patents | 50 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 5 |
| 2024 | 7 |
| 2025 | 5 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025374826-A1 · Dec 4, 2025 · US
US-2025127037-A1 · Apr 17, 2025 · US
US-2025120315-A1 · Apr 10, 2025 · US
US-12262635-B2 · Mar 25, 2025 · US
US-2025000857-A1 · Jan 2, 2025 · US
US-12178124-B2 · Dec 24, 2024 · US
US-2024350482-A1 · Oct 24, 2024 · US
US-2024282989-A1 · Aug 22, 2024 · US
US-2024181067-A1 · Jun 6, 2024 · US
US-2024148885-A1 · May 9, 2024 · US
US-11938128-B2 · Mar 26, 2024 · US
US-2024010758-A1 · Jan 11, 2024 · US
US-11532790-B2 · Dec 20, 2022 · US
US-2022313656-A1 · Oct 6, 2022 · US
US-11434213-B2 · Sep 6, 2022 · US
US-11434419-B2 · Sep 6, 2022 · US
US-11437589-B2 · Sep 6, 2022 · US
US-RE48859-E · Dec 21, 2021 · US
US-2021384443-A1 · Dec 9, 2021 · US
US-11177513-B2 · Nov 16, 2021 · US
Answers are generated from the same data shown on this page.