Nitrosation reagents and methods
US-12459909-B2 · Nov 4, 2025 · US
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N-nitroso-amines
N-nitroso-amines · 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 | C07C243/06 |
| Official title | N-nitroso-amines |
| Display label | N-nitroso-amines |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
NO donor compound, preparation method thereof, pharmaceutical composition comprising same, and use thereof
US-12275686-B2 · Apr 15, 2025 · US
No donor compound, preparation method thereof, pharmaceutical composition comprising same, and use thereof
US-2024409500-A1 · Dec 12, 2024 · US
Photosensitized release of nitric oxide
US-11807529-B1 · Nov 7, 2023 · US
Nitrosation Reagents and Methods
US-2023242495-A1 · Aug 3, 2023 · US
Process for the cyclopropanation of olefins using N-methyl-N-nitroso compounds
US-11034628-B2 · Jun 15, 2021 · US
Process for the cyclopropanation of olefins using n-methyl-n-nitroso compounds
US-2020172453-A1 · Jun 4, 2020 · US
Photosensitized release of nitric oxide
US-10662063-B1 · May 26, 2020 · US
Process for the cyclopropanation of olefins using N-methyl-N-nitroso compounds
US-10611704-B2 · Apr 7, 2020 · US
Photo-thermally induced polymerization inhibitors for electrophoretic media
US-10585325-B2 · Mar 10, 2020 · US
Process for the cyclopropanation of olefins using n-methyl-n-nitroso compounds
US-2019055172-A1 · Feb 21, 2019 · US
Photo-thermally induced polymerization inhibitors for electrophoretic media
US-2018259823-A1 · Sep 13, 2018 · US