Cationic lipid compound, and preparation method therefor and use thereof
US-12569449-B1 · Mar 10, 2026 · US
with formation of the N-C(O)-N moiety
with formation of the N-C(O)-N moiety · 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 | C07C273/1809 |
| Official title | {with formation of the N-C(O)-N moiety} |
| Display label | with formation of the N-C(O)-N moiety |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyurea acrylate oligomer containing protected groups and preparation method and application thereof
US-2025388717-A1 · Dec 25, 2025 · US
Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate
US-12435028-B2 · Oct 7, 2025 · US
Method for producing halogenated carbonyl
US-12421121-B2 · Sep 23, 2025 · US
Solid drug form of N-(2,6-bis(1-methylethyl)phenyl)-N′-((1-(4-(dimethylamino)phenyl)cyclopentyl)methyl)urea hydrochloride and compositions, methods and kits related thereto
US-12151998-B2 · Nov 26, 2024 · US
Method for converting monoisocyanates to ureas
US-12091377-B2 · Sep 17, 2024 · US
Processes for the preparation of (s)-tert-butyl 4,5-diamino-5-oxopentanoate
US-2024246899-A1 · Jul 25, 2024 · US
Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate
US-11912644-B2 · Feb 27, 2024 · US
Synthesis of prostate specific membrane antigen (psma) ligands
US-2024018099-A1 · Jan 18, 2024 · US
Method for producing carbonyl halide
US-2023373898-A1 · Nov 23, 2023 · US
Materials exhibiting biomimetic carbon fixation and self-repair
US-11739041-B2 · Aug 29, 2023 · US
Trifluoromethoxylation of arenes via intramolecular trifluoromethoxy group migration
US-11724982-B2 · Aug 15, 2023 · US
Processes for the preparation of (s)-tert-butyl 4,5-diamino-5-oxopentanoate
US-2023234914-A1 · Jul 27, 2023 · US
Phosphine-mediated amine-azide coupling in ionic liquid for bioconjugation reactions
US-2023068165-A1 · Mar 2, 2023 · US
Processes for the preparation of (S)-tert-butyl 4,5- diamino-5-oxopentanoate
US-11505522-B2 · Nov 22, 2022 · US
Method for producing halogenated carbonyl
US-2022289579-A1 · Sep 15, 2022 · US
Method for producing carbamate and method for producing isocyanate
US-11352319-B2 · Jun 7, 2022 · US
Solid drug form of n-(2,6-bis(1-methylethyl)phenyl)-n'-((1-(4-(dimethylamino)phenyl)cyclopentyl)methyl)urea hydrochloride and compositions, methods and kits related thereto
US-2022162160-A1 · May 26, 2022 · US
Materials exhibiting biomimetic carbon fixation and self-repair
US-2022081383-A1 · Mar 17, 2022 · US
N-trifluormethylcarbonyl compounds and methods for their synthesis
US-2022009900-A1 · Jan 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C273/1809?
- CPC C07C273/1809 is the Cooperative Patent Classification code for “with formation of the N-C(O)-N moiety.”
- How many patents are filed under CPC C07C273/1809 (with formation of the N-C(O)-N moiety)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC C07C273/1809 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).