Infrared absorbers, infrared absorbing/blocking films and photoelectric devices and organic sensors and electronic devices
US-2021343946-A1 · Nov 4, 2021 · US
Ortho-condensed systems
Ortho-condensed systems · 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 | C07D517/04 |
| Official title | Ortho-condensed systems |
| Display label | Ortho-condensed systems |
| Total patents | 113 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 19 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 13 |
| 2024 | 6 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photoelectric conversion element, imaging element, optical sensor, and compound
US-2020411569-A1 · Dec 31, 2020 · US
Thermally activated delayed fluorescent molecular material, a synthesizing method therefor, and an electroluminescent device
US-2020381632-A1 · Dec 3, 2020 · US
Isothiazolo-based bicycles, processes for their preparation and their use as herbicides and/or plant growth regulators
US-10842152-B2 · Nov 24, 2020 · US
Heteroaromatic compound and organic electroluminescence device using the same
US-10844043-B2 · Nov 24, 2020 · US
Naphthobischalcogenadiazole derivative and production method therefor
US-10793584-B2 · Oct 6, 2020 · US
Organic electroluminescent materials and devices
US-10777749-B2 · Sep 15, 2020 · US
Organic compound and electroluminescent device containing the same
US-2020231602-A1 · Jul 23, 2020 · US
Compound for organic electric element, organic electric element comprising the same and electronic device thereof
US-10717744-B2 · Jul 21, 2020 · US
Proteasome Inhibiting Beta-Lactam Produrgs Useful for the Treatment of Cancer and Nurodegenerative Disorders
US-2020216455-A1 · Jul 9, 2020 · US
Novel isothiazolo-based bicycles, processes for their preparation and their use as herbicides and/or plant growth regulators
US-2020178532-A1 · Jun 11, 2020 · US
Transition metal luminescent complexes and methods of use
US-2020176691-A1 · Jun 4, 2020 · US
Compound and thin film transistor and electronic device
US-2020165268-A1 · May 28, 2020 · US
Compound and organic thin film and thin film transistor and electronic device
US-2020168806-A1 · May 28, 2020 · US
Synthetic method of fused heteroaromatic compound and fused heteroaromatic compound, and intermediate thereof
US-10600973-B2 · Mar 24, 2020 · US
Organic electroluminescent materials and devices
US-2020087311-A1 · Mar 19, 2020 · US
Compound and thin film transistor and electronic device
US-2020075867-A1 · Mar 5, 2020 · US
Extended absorbance solar leaf and methods of making
US-2020048094-A1 · Feb 13, 2020 · US
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
US-2020044159-A1 · Feb 6, 2020 · US
Extended absorbance solar leaf and methods of making
US-10526205-B2 · Jan 7, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D517/04?
- CPC C07D517/04 is the Cooperative Patent Classification code for “Ortho-condensed systems.”
- How many patents are filed under CPC C07D517/04 (Ortho-condensed systems)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC C07D517/04 growing?
- Publication counts under this code: 6 in 2024 vs 15 in 2025 (latest complete years).