Bicyclic pyridine derivative
US-2024150370-A1 · May 9, 2024 · US
Ortho- or peri-condensed ring systems
Ortho- or peri-condensed ring 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 | C07D221/04 |
| Official title | Ortho- or peri-condensed ring systems |
| Display label | Ortho- or peri-condensed ring systems |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 18 |
| 2017 | 17 |
| 2018 | 14 |
| 2019 | 13 |
| 2020 | 6 |
| 2021 | 16 |
| 2022 | 12 |
| 2023 | 16 |
| 2024 | 20 |
| 2025 | 15 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Caspase inhibitor and pharmaceutical composition, use and therapeutic method thereof
US-2019135733-A1 · May 9, 2019 · US
Compounds for use as GPR120 agonists
US-10227360-B2 · Mar 12, 2019 · US
Thioether compounds as nitrification inhibitors
US-2018346392-A9 · Dec 6, 2018 · US
Factor XIa inhibitors
US-10123995-B2 · Nov 13, 2018 · US
Pyrrole heteroaryl ring derivative and method of use thereof
US-2018222912-A1 · Aug 9, 2018 · US
Bicyclic compound and pharmaceutical composition thereof for treating stroke and use thereof
US-10035791-B2 · Jul 31, 2018 · US
Pyridine derivatives
US-10005762-B2 · Jun 26, 2018 · US
Salts of a pim kinase inhibitor
US-2018170907-A1 · Jun 21, 2018 · US
Thioether compounds as nitrification inhibitors
US-2018134633-A1 · May 17, 2018 · US
Antidiabetic bicyclic compounds
US-9957219-B2 · May 1, 2018 · US
Novel compounds as rearranged during transfection (ret) inhibitors
US-2018099976-A1 · Apr 12, 2018 · US
Substituted oxopyridine derivatives and use thereof as factor XIa/plasma
US-9918969-B2 · Mar 20, 2018 · US
Sulfonylureas and related compounds and use of same
US-2018044287-A1 · Feb 15, 2018 · US
Compounds as rearranged during transfection (RET) inhibitors
US-9879021-B2 · Jan 30, 2018 · US
Salts of a pim kinase inhibitor
US-9862705-B2 · Jan 9, 2018 · US
FACTOR XIa INHIBITORS
US-2018000795-A1 · Jan 4, 2018 · US
Inhibitors of kidney-type glutaminase, gls-1
US-2017362221-A1 · Dec 21, 2017 · US
Pyridine derivatives
US-2017362209-A1 · Dec 21, 2017 · US
1,3-Di-oxo-indene derivative, pharmaceutically acceptable salt or optical isomer thereof, preparation method thereof, and pharmaceutical composition containing same as an antiviral, active ingredient
US-9833423-B2 · Dec 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D221/04?
- CPC C07D221/04 is the Cooperative Patent Classification code for “Ortho- or peri-condensed ring systems.”
- How many patents are filed under CPC C07D221/04 (Ortho- or peri-condensed ring systems)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC C07D221/04 growing?
- Publication counts under this code: 20 in 2024 vs 15 in 2025 (latest complete years).