Compounds comprising a hetero-fluorene group
US-2022231234-A1 · Jul 21, 2022 · US
containing carbocyclic rings other than six-membered
containing carbocyclic rings other than six-membered · 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 | C07D221/16 |
| Official title | containing carbocyclic rings other than six-membered |
| Display label | containing carbocyclic rings other than six-membered |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 13 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 7 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Novel substituted tricyclic compounds as indoleamine 2,3-dioxygenase inhibitors
US-2021403469-A1 · Dec 30, 2021 · US
Compositions and methods for targeting a viral infection
US-2021338659-A1 · Nov 4, 2021 · US
Papd5 inhibitors and methods of use thereof
US-2021177827-A1 · Jun 17, 2021 · US
Photostabilizing compounds, compositions, and methods
US-2021163419-A1 · Jun 3, 2021 · US
Compound and composition for forming organic film
US-11022882-B2 · Jun 1, 2021 · US
Compounds, compositions and methods for prevention and/or treatment of cancer
US-2020306261-A1 · Oct 1, 2020 · US
Compound, method for manufacturing the compound, and composition for forming organic film
US-10604618-B2 · Mar 31, 2020 · US
Autophagy inhibitors
US-10544100-B2 · Jan 28, 2020 · US
Antidiabetic tricyclic compounds
US-10519115-B2 · Dec 31, 2019 · US
Compound and composition for forming organic film
US-2019391493-A1 · Dec 26, 2019 · US
Compound, method for manufacturing the compound, and composition for forming organic film
US-2019390000-A1 · Dec 26, 2019 · US
Compositions of protein receptor tyrosine kinase inhibitors
US-10421763-B2 · Sep 24, 2019 · US
Compounds for treatment of cancer and epigenetics
US-2019071416-A1 · Mar 7, 2019 · US
Indenopyridine-based compound and organic light-emitting device including the same
US-2019067587-A1 · Feb 28, 2019 · US
Compositions and methods for decreasing, or preventing or reversing gain of, skin pigmentation in a mammalian subject
US-2018354935-A1 · Dec 13, 2018 · US
Indenopyridine-based compound and organic light-emitting device including the same
US-10134997-B2 · Nov 20, 2018 · US
Autophagy Inhibitors
US-2018290980-A1 · Oct 11, 2018 · US
Compositions and methods for increasing, or preventing or reversing loss of, skin pigmentation in a mammalian subject
US-2018273482-A1 · Sep 27, 2018 · US
Antidiabetic tricyclic compounds
US-10000454-B2 · Jun 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D221/16?
- CPC C07D221/16 is the Cooperative Patent Classification code for “containing carbocyclic rings other than six-membered.”
- How many patents are filed under CPC C07D221/16 (containing carbocyclic rings other than six-membered)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C07D221/16 growing?
- Publication counts under this code: 7 in 2024 vs 1 in 2025 (latest complete years).