Methods for treating depressive symptoms
US-12257249-B2 · Mar 25, 2025 · US
containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems
containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or 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 | C07D489/09 |
| Official title | containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems |
| Display label | containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems |
| Total patents | 26 |
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 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Opioid ketal compounds and uses thereof
US-11773107-B2 · Oct 3, 2023 · US
Opioid ketal compounds and uses thereof
US-11731979-B2 · Aug 22, 2023 · US
Methods for treating depressive symptoms
US-2023158017-A1 · May 25, 2023 · US
Methods for treating depressive symptoms
US-11534436-B2 · Dec 27, 2022 · US
Opioid ketal compounds and uses thereof
US-2022041612-A1 · Feb 10, 2022 · US
Opioid ketal compounds and uses thereof
US-11130765-B2 · Sep 28, 2021 · US
Opioid ketal compounds and uses thereof
US-11091496-B2 · Aug 17, 2021 · US
Opioid ketal compounds and uses thereof
US-10988480-B2 · Apr 27, 2021 · US
Methods for treating depressive symptoms
US-2021000818-A1 · Jan 7, 2021 · US
Opioid ketal compounds and uses thereof
US-2020325146-A1 · Oct 15, 2020 · US
Opioid ketal compounds and uses thereof
US-2020317684-A1 · Oct 8, 2020 · US
Methods for treating depressive symptoms
US-10736890-B2 · Aug 11, 2020 · US
Opioid ketal compounds and uses thereof
US-2020048269-A1 · Feb 13, 2020 · US
Methods for treating depressive symptoms
US-2019167666-A1 · Jun 6, 2019 · US
Methods for treating depressive symptoms
US-10231963-B2 · Mar 19, 2019 · US
Spirocyclic morphinans and use thereof
US-10030021-B2 · Jul 24, 2018 · US
Methods for treating depressive symptoms
US-2017216279-A1 · Aug 3, 2017 · US
Spirocyclic morphinans and use thereof
US-2017190702-A1 · Jul 6, 2017 · US
Methods for treating depressive symptoms
US-9656961-B2 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D489/09?
- CPC C07D489/09 is the Cooperative Patent Classification code for “containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems.”
- How many patents are filed under CPC C07D489/09 (containing 4aH-8, 9 c-Iminoethano- phenanthro [4, 5-b, c, d] furan ring systems condensed with carbocyclic rings or ring systems)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C07D489/09 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2025 (latest complete years).