Compound, curable composition, cured product, optical member, and lens
US-2018305486-A1 · Oct 25, 2018 · US
with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms · 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 | C07D241/38 |
| Official title | with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms |
| Display label | with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms |
| Total patents | 161 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 19 |
| 2017 | 18 |
| 2018 | 15 |
| 2019 | 15 |
| 2020 | 13 |
| 2021 | 15 |
| 2022 | 11 |
| 2023 | 13 |
| 2024 | 15 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Herbicidal compounds
US-2018111948-A1 · Apr 26, 2018 · US
Diarylalkylamine REV-ERB antagonists and their use as medicaments
US-9949968-B2 · Apr 24, 2018 · US
Tricyclic Spacer Systems for Nonlinear Optical Devices
US-2018044333-A1 · Feb 15, 2018 · US
Materials for organic electroluminescence devices
US-9893292-B2 · Feb 13, 2018 · US
Synthesis of tetracyclines and analogues thereof
US-9884830-B2 · Feb 6, 2018 · US
Organic light emitting device and display device having the same
US-9876180-B2 · Jan 23, 2018 · US
Heterocyclic compound, light-emitting element, light-emitting device, electronic appliance, and lighting device
US-2018006232-A1 · Jan 4, 2018 · US
Substituted phenazines as antimicrobial agents
US-9856225-B2 · Jan 2, 2018 · US
Condensed cyclic compound and an organic light-emitting device including the same
US-2017365794-A1 · Dec 21, 2017 · US
Heterocyclic compound, light-emitting element, light-emitting device, electronic appliance, and lighting device
US-9825230-B2 · Nov 21, 2017 · US
Condensed-cyclic compound and organic light-emitting device including the same
US-9812651-B2 · Nov 7, 2017 · US
Semiconductor Composition Comprising an Inorganic Semiconducting Material and an Organic Binder
US-2017309848-A1 · Oct 26, 2017 · US
Organic light emitting device and display unit
US-2017301885-A1 · Oct 19, 2017 · US
Dibenzo[f,h]Quinoxaline Derivative, Method of Synthesizing the Same, Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device
US-2017294594-A1 · Oct 12, 2017 · US
Organic light emitting device and display unit
US-9786869-B2 · Oct 10, 2017 · US
Substituted quinoxalines as positive allosteric modulators of mGluR4
US-9763938-B2 · Sep 19, 2017 · US
Method for producing fullerene derivative
US-2017253567-A1 · Sep 7, 2017 · US
Heterocyclic compounds for treating or preventing disorers caused by reduced neurotransmission of serotonin, norephnephrine or dopamine
US-2017224713-A1 · Aug 10, 2017 · US
Tricyclic spacer systems for nonlinear devices
US-2017204091-A1 · Jul 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D241/38?
- CPC C07D241/38 is the Cooperative Patent Classification code for “with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms.”
- How many patents are filed under CPC C07D241/38 (with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms)?
- Our database includes 161 publications tagged with this CPC code.
- Is patent activity under CPC C07D241/38 growing?
- Publication counts under this code: 15 in 2024 vs 10 in 2025 (latest complete years).