Organic electroluminescence element, composition, powder, electronic equipment, and novel compound
US-12581850-B2 · Mar 17, 2026 · US
containing three rings
containing three 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 | C07C15/27 |
| Official title | containing three rings |
| Display label | containing three rings |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic electroluminescence element, composition, powder, electronic equipment, and novel compound
US-2025295024-A1 · Sep 18, 2025 · US
Organic compound, organic light emitting diode and organic light emitting device having thereof
US-2025178987-A1 · Jun 5, 2025 · US
Organic light-emitting device having high efficiency and long lifespan
US-2025063943-A1 · Feb 20, 2025 · US
High efficiency and long lifetime organic light-emitting diode
US-2025063948-A1 · Feb 20, 2025 · US
Multi-component composition
US-12167682-B2 · Dec 10, 2024 · US
Light-emitting device and an electronic device including the same
US-12069890-B2 · Aug 20, 2024 · US
Organic light-emitting element
US-11877509-B2 · Jan 16, 2024 · US
Compound and organic electroluminescence device using the same
US-11765972-B2 · Sep 19, 2023 · US
Novel Compound and Organic Light Emitting Device Comprising the Same
US-2023180596-A1 · Jun 8, 2023 · US
Multi-component composition
US-2023006142-A1 · Jan 5, 2023 · US
Organic electroluminescence element, composition, powder, electronic equipment, and novel compound
US-2022393110-A1 · Dec 8, 2022 · US
Organic molecules for use in light-emitting devices
US-2022388960-A1 · Dec 8, 2022 · US
Light-emitting device and an electronic device including the same
US-2022190296-A1 · Jun 16, 2022 · US
Hydrogen Storage Materials Comprising Naphtalene Group and the Method for Hydrogen Storage and Release Using the Same
US-2022033258-A1 · Feb 3, 2022 · US
Organic compound and organic light-emitting element
US-11196006-B2 · Dec 7, 2021 · US
Method for synthesizing organic magnesium compound, method for synthesizing organic boronic acid compound, and coupling method
US-2021070777-A1 · Mar 11, 2021 · US
Compound and organic electroluminescence device using the same
US-2021009527-A1 · Jan 14, 2021 · US
Organic electroluminescence device and electronic apparatus
US-2020388768-A1 · Dec 10, 2020 · US
Organic compound and organic light-emitting element
US-2020111963-A1 · Apr 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C15/27?
- CPC C07C15/27 is the Cooperative Patent Classification code for “containing three rings.”
- How many patents are filed under CPC C07C15/27 (containing three rings)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC C07C15/27 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).