1,9,10-substituted phenothiazine derivatives with strained radical cations and use thereof
US-10854911-B2 · Dec 1, 2020 · US
with carbon atoms directly attached to the ring nitrogen atom
with carbon atoms directly attached to the ring nitrogen atom · 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 | C07D279/22 |
| Official title | with carbon atoms directly attached to the ring nitrogen atom |
| Display label | with carbon atoms directly attached to the ring nitrogen atom |
| Total patents | 142 |
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 | 11 |
| 2018 | 21 |
| 2019 | 13 |
| 2020 | 19 |
| 2021 | 8 |
| 2022 | 16 |
| 2023 | 9 |
| 2024 | 14 |
| 2025 | 11 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-electron redox active molecules with high capacity and energy density for energy storage applications
US-10840531-B2 · Nov 17, 2020 · US
Spirobifluorene compounds for organic electroluminescent devices
US-2020235305-A1 · Jul 23, 2020 · US
Phenanthrene compounds for organic electronic devices
US-2019393414-A1 · Dec 26, 2019 · US
Heteroaromatic compound and organic electroluminescence device using the same
US-2019322641-A1 · Oct 24, 2019 · US
Organic compound and organic electroluminescence device using the same
US-10454045-B2 · Oct 22, 2019 · US
Phenanthrene compounds for organic electronic devices
US-10446759-B2 · Oct 15, 2019 · US
Rechargeable Lithium-ion Cell
US-2019305381-A1 · Oct 3, 2019 · US
Organic compound and organic electroluminescence device using the same
US-2019198781-A1 · Jun 27, 2019 · US
Organic photosensitive devices comprising aryl squaraines and methods of making the same
US-10333079-B2 · Jun 25, 2019 · US
Organic molecules for use in optoelectronic devices
US-10263196-B2 · Apr 16, 2019 · US
Rechargeable lithium-ion cell
US-10249910-B2 · Apr 2, 2019 · US
Monomer, polymer, resist composition, and patterning process
US-2019079399-A1 · Mar 14, 2019 · US
Fluorogenic water soluble hydrazine sensors
US-2019033215-A1 · Jan 31, 2019 · US
Bishydrazone-based antifungal agents
US-10173968-B2 · Jan 8, 2019 · US
Materials for electronic devices
US-2019002417-A1 · Jan 3, 2019 · US
Non-aqueous redox flow batteries including 3,7-perfluoroalkylated phenothiazine derivatives
US-10153510-B2 · Dec 11, 2018 · US
Organic electroluminescent component
US-2018301637-A1 · Oct 18, 2018 · US
Organic electroluminescent material
US-2018297950-A1 · Oct 18, 2018 · US
Liquid phenothiazine catholytes for non-aqueous redox flow batteries
US-10103402-B2 · Oct 16, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D279/22?
- CPC C07D279/22 is the Cooperative Patent Classification code for “with carbon atoms directly attached to the ring nitrogen atom.”
- How many patents are filed under CPC C07D279/22 (with carbon atoms directly attached to the ring nitrogen atom)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC C07D279/22 growing?
- Publication counts under this code: 14 in 2024 vs 11 in 2025 (latest complete years).