Host material, composition, and organic electroluminescent element
US-2025051636-A1 · Feb 13, 2025 · US
containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine
containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine · 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 | C07D455/04 |
| Official title | containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine |
| Display label | containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 12 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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
Fluorescent sensors
US-2024019450-A1 · Jan 18, 2024 · US
Compounds and methods to target glucose-stimulated phosphohistidine signaling and esophageal cancer growth
US-2023416209-A1 · Dec 28, 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
Luminescent film, organic electroluminescent device, and method for manufacturing organic electroluminescent device
US-11557743-B2 · Jan 17, 2023 · US
Compound and light emitting element using same
US-2022123220-A1 · Apr 21, 2022 · US
Crystal forms of demethyleneberberine hydrochloride and preparation method therefor
US-11242340-B2 · Feb 8, 2022 · US
[9,10-dimethoxy-3-(2-methylpropyl)-1H,2H,3H,4H,6H,7H,11BH-pyrido-[2,1-a]isoquinolin-2-yl]methanol and compounds, compositions and methods relating thereto
US-11053242-B2 · Jul 6, 2021 · US
Fused tricyclic compounds and uses thereof in medicine
US-10966970-B2 · Apr 6, 2021 · US
Dyes for Analysis of Soluble Protein Aggregates or Misfolded Protein Oligomers
US-2021094922-A1 · Apr 1, 2021 · US
Small molecule lipid II inhibitors
US-10961214-B2 · Mar 30, 2021 · US
Cyclic amine surface modifier and organic electronic devices comprising such cyclic amine surface modifier
US-10879477-B2 · Dec 29, 2020 · US
Crystal Forms of Demethyleneberberine Hydrochloride and Preparation Method Therefor
US-2020392129-A1 · Dec 17, 2020 · US
Luminescent film, organic electroluminescent device, and method for manufacturing organic electroluminescent device
US-2020388781-A1 · Dec 10, 2020 · US
[9,10-dimethoxy-3-(2-methylpropyl)-1h,2h,3h,4h,6h,7h,11bh-pyrido-[2,1-a]isoquinolin-2-yl]methanol and compounds, compositions and methods relating thereto
US-2020262834-A1 · Aug 20, 2020 · US
Fluorescent probe, preparation method therefor and use thereof
US-2020248069-A1 · Aug 6, 2020 · US
Organic compounds with soluble groups
US-10683453-B2 · Jun 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D455/04?
- CPC C07D455/04 is the Cooperative Patent Classification code for “containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine.”
- How many patents are filed under CPC C07D455/04 (containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC C07D455/04 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).