Aromatic amine derivative, material for organic electroluminescent element, and organic electroluminescent element
US-2018323377-A1 · Nov 8, 2018 · US
Benzo [b] furans; Hydrogenated benzo [b] furans
Benzo [b] furans; Hydrogenated benzo [b] furans · 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 | C07D307/78 |
| Official title | Benzo [b] furans; Hydrogenated benzo [b] furans |
| Display label | Benzo [b] furans; Hydrogenated benzo [b] furans |
| Total patents | 100 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 18 |
| 2017 | 12 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 2 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pyridazinone herbicides
US-10118917-B2 · Nov 6, 2018 · US
Benzofuran analogue as NS4B inhibitor
US-10100027-B2 · Oct 16, 2018 · US
Organic light-emitting devices
US-2018240981-A1 · Aug 23, 2018 · US
2-phenylbenzofuran derivatives, method for preparing the same and use of the same for treating inflammatory disease
US-10053443-B2 · Aug 21, 2018 · US
Aromatic amine derivative, material for organic electroluminescent element, and organic electroluminescent element
US-10056558-B2 · Aug 21, 2018 · US
Fluorene derivative, light-emitting element, light-emitting device, electronic device, and lighting device
US-10050207-B2 · Aug 14, 2018 · US
Organic light-emitting element
US-2018226603-A1 · Aug 9, 2018 · US
Heterocyclic compound and organic light-emitting element using same
US-10032997-B2 · Jul 24, 2018 · US
Organic light emitting diode and organic light emitting display device including the same
US-10003040-B2 · Jun 19, 2018 · US
Organic light-emitting element
US-9966552-B2 · May 8, 2018 · US
Hetero-cyclic compound and organic light emitting device comprising the same
US-9954181-B2 · Apr 24, 2018 · US
Electroactive materials
US-2018062082-A1 · Mar 1, 2018 · US
Organic light emitting diode using p-type oxide semiconductor containing gallium, and preparation method therefor
US-2017263879-A1 · Sep 14, 2017 · US
Benzofuran analogue as ns4b inhibitor
US-2017240519-A1 · Aug 24, 2017 · US
Organic electroluminescent element, material for organic electroluminescent element and light emitting device, display device, and illumination device, each employing organic electroluminescent element
US-9728726-B2 · Aug 8, 2017 · US
Compound, organic optoelectronic diode containing same, and display device
US-2017200902-A1 · Jul 13, 2017 · US
2-phenylbenzofuran derivatives, method for preparing the same and use of the same for treating inflammatory disease
US-2017174645-A1 · Jun 22, 2017 · US
Organic compound, organic optoelectronic element, and display device
US-2017141331-A1 · May 18, 2017 · US
Fluorene derivative, light-emitting element, light-emitting device, electronic device, and lighting device
US-2017104157-A1 · Apr 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D307/78?
- CPC C07D307/78 is the Cooperative Patent Classification code for “Benzo [b] furans; Hydrogenated benzo [b] furans.”
- How many patents are filed under CPC C07D307/78 (Benzo [b] furans; Hydrogenated benzo [b] furans)?
- Our database includes 100 publications tagged with this CPC code.
- Is patent activity under CPC C07D307/78 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).