Compounds for use as iron(III) MRI contrast agents
US-12534487-B2 · Jan 27, 2026 · US
having two nitrogen atoms and only one oxygen atom
having two nitrogen atoms and only one oxygen atom · 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 | C07D273/02 |
| Official title | having two nitrogen atoms and only one oxygen atom |
| Display label | having two nitrogen atoms and only one oxygen atom |
| Total patents | 52 |
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 | 9 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Macrocyclic compounds as proteasome inhibitors
US-12473331-B2 · Nov 18, 2025 · US
Novel solid state forms of indoxacarb
US-2025171408-A1 · May 29, 2025 · US
AI assisted cyclic carbonate monomer synthesis
US-12110280-B2 · Oct 8, 2024 · US
Macrocyclic chalcone-amide derived antiviral agents
US-2024207224-A1 · Jun 27, 2024 · US
Methods for reversing HIV latency using BAF complex modulating compounds
US-11980613-B2 · May 14, 2024 · US
Creatine prodrugs, compositions and methods of use thereof
US-2024092731-A1 · Mar 21, 2024 · US
Macrocyclic compounds as proteasome inhibitors
US-2024043470-A1 · Feb 8, 2024 · US
Cannabinoid derivatives as pharmaceutically active compounds and method of preparation thereof
US-2024025858-A1 · Jan 25, 2024 · US
Macrocyclic compounds as proteasome inhibitors
US-11834515-B2 · Dec 5, 2023 · US
Creatine prodrugs, compositions and methods of use thereof
US-11753369-B2 · Sep 12, 2023 · US
Macrocyclic immunomodulators
US-11691985-B2 · Jul 4, 2023 · US
Ai assisted cyclic carbonate monomer synthesis
US-2023009671-A1 · Jan 12, 2023 · US
Macrocyclic compounds as proteasome inhibitors
US-2022324907-A1 · Oct 13, 2022 · US
Compounds for use as iron(iii) mri contrast agents
US-2022259244-A1 · Aug 18, 2022 · US
Creatine prodrugs, compositions and methods of use thereof
US-2022227703-A1 · Jul 21, 2022 · US
Creatine prodrugs, compositions and methods of use thereof
US-11332438-B2 · May 17, 2022 · US
Macrocyclic immunomodulators
US-2022119405-A1 · Apr 21, 2022 · US
BAF complex modulating compounds and methods of using the same
US-11267809-B2 · Mar 8, 2022 · US
Compounds for use as iron(III) MRI contrast agents
US-11261208-B2 · Mar 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D273/02?
- CPC C07D273/02 is the Cooperative Patent Classification code for “having two nitrogen atoms and only one oxygen atom.”
- How many patents are filed under CPC C07D273/02 (having two nitrogen atoms and only one oxygen atom)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC C07D273/02 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).