Analgesic delta opioid receptor bitopic ligands
US-2025376477-A1 · Dec 11, 2025 · US
This page is not indexed by search engines while we improve data quality.
in which the condensed system contains three hetero rings
in which the condensed system contains three hetero 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 | C07D491/12 |
| Official title | in which the condensed system contains three hetero rings |
| Display label | in which the condensed system contains three hetero rings |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2017 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spiro-oxazolones
US-2025066378-A1 · Feb 27, 2025 · US
Spiro-oxazolones
US-12162887-B2 · Dec 10, 2024 · US
Substituted heteroaryl compound, and composition and application thereof
US-2023339977-A1 · Oct 26, 2023 · US
Novel prolylfk506 derivatives having neurite growth and synapse formation activities and uses thereof
US-2023137836-A1 · May 4, 2023 · US
Spiro-oxazolones
US-2023106150-A1 · Apr 6, 2023 · US
Spiro-oxazolones
US-11578077-B2 · Feb 14, 2023 · US
Pyrimidine carboxamides as GSK-3 inhibitors
US-11053258-B2 · Jul 6, 2021 · US
Pyrimidine carboxamides as gsk-3 inhibitors
US-2020181170-A1 · Jun 11, 2020 · US
Spiro-oxazolones
US-2020039997-A1 · Feb 6, 2020 · US
Hemi-synthetic trilobine analogs for use as a drug
US-10544156-B2 · Jan 28, 2020 · US
Spiro-oxazolones
US-10479796-B2 · Nov 19, 2019 · US
Hemi-synthetic trilobine analogs for use as a drug
US-2019062339-A1 · Feb 28, 2019 · US
Condensed cyclic compound and organic light emitting device including the same
US-9850253-B2 · Dec 26, 2017 · US
Labeling composition for intraocular tissue, labeling method of intraocular tissue, and screening method
US-9764046-B2 · Sep 19, 2017 · US
Organic electroluminescent materials and devices
US-9590194-B2 · Mar 7, 2017 · US
Spiro-oxazolones
US-2017008901-A1 · Jan 12, 2017 · US
Condensed cyclic compound and organic light emitting device including the same
US-2015333271-A1 · Nov 19, 2015 · US
Organic Electroluminescent Materials and Devices
US-2015236276-A1 · Aug 20, 2015 · US
Labeling composition for intraocular tissue, labeling method of intraocular tissue, and screening method
US-2015139908-A1 · May 21, 2015 · US