Organic electroluminescent materials and devices
US-12286410-B2 · Apr 29, 2025 · US
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condensed with carbocyclic rings or ring systems
condensed with carbocyclic rings or ring systems · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D255/04 |
| Official title | condensed with carbocyclic rings or ring systems |
| Display label | condensed with carbocyclic rings or ring systems |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Macrocyclic chalcone-amide derived antiviral agents
US-2024207224-A1 · Jun 27, 2024 · US
Mechanism of resistance to bet bromodomain inhibitors
US-11666580-B2 · Jun 6, 2023 · US
Nrf2 REGULATORS
US-2023047296-A1 · Feb 16, 2023 · US
Organic electroluminescent materials and devices
US-2021355092-A1 · Nov 18, 2021 · US
Modulators of indoleamine 2,3-dioxygenase
US-10899754-B2 · Jan 26, 2021 · US
Mechanism of resistance to bet bromodomain inhibitors
US-2020368248-A1 · Nov 26, 2020 · US
Modulators of indoleamine 2,3-dioxygenase
US-2020115374-A1 · Apr 16, 2020 · US
Nrf2 regulators
US-10604509-B2 · Mar 31, 2020 · US
Nrf2 REGULATORS
US-2020079759-A1 · Mar 12, 2020 · US
Materials for electronic devices
US-10381575-B2 · Aug 13, 2019 · US
Nrf2 REGULATORS
US-2018179187-A1 · Jun 28, 2018 · US
Macrocyclic factor VIIa inhibitors
US-9657006-B2 · May 23, 2017 · US
Materials for Electronic Devices
US-2016133854-A1 · May 12, 2016 · US
Macrocyclic factor viia inhibitors
US-2016115159-A1 · Apr 28, 2016 · US