Organic electroluminescent element and electronic device
US-12528984-B2 · Jan 20, 2026 · US
having three or more double bonds between ring members or between ring members and non-ring members
having three or more double bonds between ring members or between ring members and non-ring members · 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 | C07D309/34 |
| Official title | having three or more double bonds between ring members or between ring members and non-ring members |
| Display label | having three or more double bonds between ring members or between ring members and non-ring members |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compositions and methods for visible-light-controlled ruthenium-catalyzed olefin metathesis
US-12377407-B2 · Aug 5, 2025 · US
Luminescent probe and its preparation method and application
US-12305098-B2 · May 20, 2025 · US
Luminescent probe and its preparation method and application
US-2025066662-A1 · Feb 27, 2025 · US
Host material, composition, and organic electroluminescent element
US-2025051636-A1 · Feb 13, 2025 · US
Composition, film, organic light emitting element, method for providing light emitting composition, and program
US-12180399-B2 · Dec 31, 2024 · US
Host material, composition, and organic electroluminescent element
US-12163074-B2 · Dec 10, 2024 · US
Method for producing triarylorganoborates
US-12043636-B2 · Jul 23, 2024 · US
NIR-II emissive luminogens
US-12023387-B2 · Jul 2, 2024 · US
Bioorthogonal linkers and reactions
US-2024058455-A1 · Feb 22, 2024 · US
Method for producing triarylorganoborates
US-2024002409-A1 · Jan 4, 2024 · US
Method for producing triarylorganoborates
US-11760765-B2 · Sep 19, 2023 · US
Process for the preparation of pyrylium salts
US-11661407-B2 · May 30, 2023 · US
Composition, film, organic light emitting element, method for providing light emitting composition, and program
US-2023119624-A1 · Apr 20, 2023 · US
Host material, composition, and organic electroluminescent element
US-2023113918-A1 · Apr 13, 2023 · US
Organic electroluminescent element and electronic device
US-2023088213-A1 · Mar 23, 2023 · US
Organic compound and organic light-emitting element
US-2022267256-A1 · Aug 25, 2022 · US
Compositions And Methods For Visible-Light-Controlled Ruthenium-Catalyzed Olefin Metathesis
US-2022219155-A1 · Jul 14, 2022 · US
Compositions and methods for visible-light-controlled ruthenium-catalyzed olefin metathesis
US-11331656-B2 · May 17, 2022 · US
Process for the manufacturing of triaryl-organo borates
US-11242360-B2 · Feb 8, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D309/34?
- CPC C07D309/34 is the Cooperative Patent Classification code for “having three or more double bonds between ring members or between ring members and non-ring members.”
- How many patents are filed under CPC C07D309/34 (having three or more double bonds between ring members or between ring members and non-ring members)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C07D309/34 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).