Second-order nonlinear optical compound and nonlinear optical element comprising the same
US-2016318889-A1 · Nov 3, 2016 · US
Peri-condensed systems
Peri-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 | C07D471/06 |
| Official title | Peri-condensed systems |
| Display label | Peri-condensed systems |
| Total patents | 615 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 58 |
| 2016 | 61 |
| 2017 | 67 |
| 2018 | 59 |
| 2019 | 63 |
| 2020 | 60 |
| 2021 | 45 |
| 2022 | 48 |
| 2023 | 50 |
| 2024 | 42 |
| 2025 | 51 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound
US-2016115163-A1 · Apr 28, 2016 · US
Separation of nanoparticles
US-2015375180-A1 · Dec 31, 2015 · US
Macrocycles as factor XIa inhibitors
US-9221818-B2 · Dec 29, 2015 · US
Green emitting phosphors combined with broad band organic red emitters with a sharp near ir cut off
US-2015372240-A1 · Dec 24, 2015 · US
Tricyclic indole derivatives useful endothelial lipase inhibitors
US-9216998-B2 · Dec 22, 2015 · US
Hiv replication inhibitor
US-2015361093-A1 · Dec 17, 2015 · US
Bis-Quaternary Ammonium Cyclophane Compounds that Interact with Neuronal Nicotinic Acetylcholine Receptors
US-2015352088-A1 · Dec 10, 2015 · US
Antibacterial Oxadiazolone Derivatives
US-2015353547-A1 · Dec 10, 2015 · US
Diketopyrrolopyrrole oligomers and compositions, comprising diketopyrrolopyrrole oligomers
US-9209412-B2 · Dec 8, 2015 · US
Superstructures of diketopyrrolopyrrole donors and perylenediimide acceptors formed by hydrogen-bonding and π•••π stacking
US-9206180-B2 · Dec 8, 2015 · US
Fluorescent organic nanoparticles
US-9201010-B2 · Dec 1, 2015 · US
Compounds for electronic devices
US-2015340613-A1 · Nov 26, 2015 · US
Naphthalene-based two-photon fluorescent probes, preparation method and use thereof
US-9182350-B2 · Nov 10, 2015 · US
Fused thiophene-based conjugated polymers and their use in optoelectronic devices
US-9178160-B1 · Nov 3, 2015 · US
Tricyclic quinoline and quinoxaline derivatives
US-9169253-B2 · Oct 27, 2015 · US
Flindersia Alkaloids, Derivatives and Analogs: Compositions and Methods for Producing the Same
US-2015299196-A1 · Oct 22, 2015 · US
Process for synthesis of chiral 3-substituted tetrahydroquinoline derivatives
US-9163038-B2 · Oct 20, 2015 · US
Materials for organic electroluminescent devices
US-2015295186-A1 · Oct 15, 2015 · US
Perylene-based semiconductors and methods of preparation and use thereof
US-9147850-B2 · Sep 29, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D471/06?
- CPC C07D471/06 is the Cooperative Patent Classification code for “Peri-condensed systems.”
- How many patents are filed under CPC C07D471/06 (Peri-condensed systems)?
- Our database includes 615 publications tagged with this CPC code.
- Is patent activity under CPC C07D471/06 growing?
- Publication counts under this code: 42 in 2024 vs 51 in 2025 (latest complete years).