Organic compound and electroluminescent device containing the same
US-11492360-B2 · Nov 8, 2022 · US
containing three or more hetero rings
containing three or more hetero rings · 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 | C07D421/14 |
| Official title | containing three or more hetero rings |
| Display label | containing three or more hetero rings |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 14 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 13 |
| 2024 | 11 |
| 2025 | 12 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compound and organic photoelectric device, image sensor and electronic device including the same
US-11476423-B2 · Oct 18, 2022 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-11466001-B2 · Oct 11, 2022 · US
Compound and organic light-emitting display device
US-11312710-B2 · Apr 26, 2022 · US
Arylamine Compound and Use Thereof in Photoelectric Devices
US-2022123222-A1 · Apr 21, 2022 · US
Compound and photoelectric device, image sensor, and electronic device including the same
US-2022006025-A1 · Jan 6, 2022 · US
Compound and photoelectric device, image sensor, and electronic device including the same
US-11145822-B2 · Oct 12, 2021 · US
Organic electroluminescent materials and devices
US-2021257554-A1 · Aug 19, 2021 · US
Organic electroluminescent materials and devices
US-11024811-B2 · Jun 1, 2021 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-2021151686-A1 · May 20, 2021 · US
Compound and photoelectric device, image sensor, and electronic device including the same
US-2021111353-A1 · Apr 15, 2021 · US
Organic electroluminescent materials and devices
US-10971687-B2 · Apr 6, 2021 · US
Compound and organic photoelectric device, image sensor and electronic device including the same
US-10944055-B2 · Mar 9, 2021 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-2020350500-A1 · Nov 5, 2020 · US
Compound and photoelectric device, image sensor and electronic device including the same
US-2020308167-A1 · Oct 1, 2020 · US
PU.1 inhibitors
US-10774049-B2 · Sep 15, 2020 · US
Photoelectric conversion element and imaging apparatus
US-2020274077-A1 · Aug 27, 2020 · US
Organic compound and electroluminescent device containing the same
US-2020231602-A1 · Jul 23, 2020 · US
Organic compound and organic electroluminescence device using the same
US-2020203632-A1 · Jun 25, 2020 · US
Organic thin-film transistor and method for manufacturing the same, material for organic thin-film transistor, composition for organic thin-film transistor, compound, and organic semiconductor film
US-10629818-B2 · Apr 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D421/14?
- CPC C07D421/14 is the Cooperative Patent Classification code for “containing three or more hetero rings.”
- How many patents are filed under CPC C07D421/14 (containing three or more hetero rings)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C07D421/14 growing?
- Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).