Organic electroluminescence device and electronic apparatus provided with the same
US-2025160208-A1 · May 15, 2025 · US
to only one ring carbon atom
to only one ring carbon atom · 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 | C07D251/16 |
| Official title | to only one ring carbon atom |
| Display label | to only one ring carbon atom |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 3 |
| 2019 | 10 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic electroluminescence device and electronic apparatus provided with the same
US-12284916-B2 · Apr 22, 2025 · US
Organic electroluminescence device and electronic apparatus equipped with the same
US-2025040436-A1 · Jan 30, 2025 · US
Organic compound and organic light-emitting device
US-12172941-B2 · Dec 24, 2024 · US
Organic electroluminescence device and electronic apparatus equipped with the same
US-12133462-B2 · Oct 29, 2024 · US
Chemical coupling linker and use thereof
US-2024252665-A1 · Aug 1, 2024 · US
Organic light emitting element and display device
US-2024244958-A1 · Jul 18, 2024 · US
Materials for organic electroluminescent devices
US-11760734-B2 · Sep 19, 2023 · US
Divalent nucleobase compounds and uses therefor
US-11713340-B2 · Aug 1, 2023 · US
Light-emitting material, compound, and organic light-emitting element
US-11637244-B2 · Apr 25, 2023 · US
Organic compound, and organic light-emitting diode and organic light-emitting device having the compound
US-11492330-B2 · Nov 8, 2022 · US
Carbocyclic nucleoside analogue
US-2022332737-A1 · Oct 20, 2022 · US
Divalent Nucleobase Compounds and Uses Therefor
US-2022259266-A1 · Aug 18, 2022 · US
Organic electroluminescence device and electronic apparatus equipped with the same
US-2022173334-A1 · Jun 2, 2022 · US
Organic electroluminescence device and electronic apparatus provided with the same
US-2022165965-A1 · May 26, 2022 · US
Organic electroluminescence device and electronic apparatus provided with the same
US-2022165964-A1 · May 26, 2022 · US
Polymerizable liquid crystal composition, optically anisotropic film, optical film, polarizing plate, image display device, and organic electroluminescent display device
US-11332669-B2 · May 17, 2022 · US
Organic compound and organic light-emitting device
US-2022081378-A1 · Mar 17, 2022 · US
Divalent nucleobase compounds and uses therefor
US-11236130-B2 · Feb 1, 2022 · US
Pyrimidine compounds and methods using the same
US-2021363154-A1 · Nov 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D251/16?
- CPC C07D251/16 is the Cooperative Patent Classification code for “to only one ring carbon atom.”
- How many patents are filed under CPC C07D251/16 (to only one ring carbon atom)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC C07D251/16 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).