Lignanamides and a method of treating neurodegenerative diseases by using the same
US-10155721-B2 · Dec 18, 2018 · US
containing five-membered rings
containing five-membered rings · 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 | C07C2603/97 |
| Official title | containing five-membered rings |
| Display label | containing five-membered rings |
| Total patents | 219 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 16 |
| 2017 | 15 |
| 2018 | 27 |
| 2019 | 30 |
| 2020 | 15 |
| 2021 | 21 |
| 2022 | 23 |
| 2023 | 26 |
| 2024 | 24 |
| 2025 | 11 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aniline derivatives and uses thereof
US-10147885-B2 · Dec 4, 2018 · US
Novel lignanamides and a method of treating neurodegenerative diseases by using the same
US-2018305300-A1 · Oct 25, 2018 · US
Organic electroluminescent device
US-2018277761-A1 · Sep 27, 2018 · US
Amine compound and organic light-emitting device comprising same
US-2018277762-A1 · Sep 27, 2018 · US
Amine-based compound and organic light emitting device comprising same
US-2018248119-A1 · Aug 30, 2018 · US
Aniline derivatives and uses thereof
US-2018240974-A1 · Aug 23, 2018 · US
Compound for organic electronic element, organic electronic element using the same, and an electronic device
US-10056560-B2 · Aug 21, 2018 · US
Materials for organic electroluminescent devices
US-2018219156-A1 · Aug 2, 2018 · US
Materials for organic electroluminescent devices
US-2018212149-A1 · Jul 26, 2018 · US
Organic electroluminescent device and manufacturing method thereof
US-2018175294-A1 · Jun 21, 2018 · US
Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device
US-2018175295-A1 · Jun 21, 2018 · US
Hole transport material
US-9997714-B2 · Jun 12, 2018 · US
Materials for organic electrluminescent devices
US-2018145260-A1 · May 24, 2018 · US
Hole transport materials
US-9947872-B2 · Apr 17, 2018 · US
Materials for organic electroluminescent devices
US-9947874-B2 · Apr 17, 2018 · US
Phenanthrene compounds for organic electronic devices
US-2018102479-A1 · Apr 12, 2018 · US
Compounds and organic electronic devices
US-2018097178-A1 · Apr 5, 2018 · US
Condensed cyclic compound and organic light-emitting device including the same
US-2018083196-A1 · Mar 22, 2018 · US
Organic electroluminescent device
US-2018047910-A1 · Feb 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C2603/97?
- CPC C07C2603/97 is the Cooperative Patent Classification code for “containing five-membered rings.”
- How many patents are filed under CPC C07C2603/97 (containing five-membered rings)?
- Our database includes 219 publications tagged with this CPC code.
- Is patent activity under CPC C07C2603/97 growing?
- Publication counts under this code: 24 in 2024 vs 11 in 2025 (latest complete years).