Nitrosation reagents and methods
US-12459909-B2 · Nov 4, 2025 · US
of nitro or nitroso groups · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07B43/02 |
| Official title | of nitro or nitroso groups |
| Display label | of nitro or nitroso groups |
| Total patents | 13 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12459909-B2 · Nov 4, 2025 · US
US-2023242495-A1 · Aug 3, 2023 · US
US-10618873-B2 · Apr 14, 2020 · US
US-2019040005-A1 · Feb 7, 2019 · US
US-9867795-B2 · Jan 16, 2018 · US
US-2017119717-A1 · May 4, 2017 · US
US-9522156-B2 · Dec 20, 2016 · US
US-9409854-B2 · Aug 9, 2016 · US
US-2016151391-A1 · Jun 2, 2016 · US
US-2016145191-A1 · May 26, 2016 · US
US-9295678-B2 · Mar 29, 2016 · US
US-2015246059-A1 · Sep 3, 2015 · US
US-9006473-B2 · Apr 14, 2015 · US