Process for catalytic hydrogenation of halonitroaromatics
US-11820725-B2 · Nov 21, 2023 · US
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by substitution of a group bound to the ring by nitrogen
by substitution of a group bound to the ring by nitrogen · 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 | C07C37/045 |
| Official title | by substitution of a group bound to the ring by nitrogen |
| Display label | by substitution of a group bound to the ring by nitrogen |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2020 | 2 |
| 2022 | 4 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparation of 5-bromo-1,3-dichloro-2-fluoro-benzene
US-11440861-B2 · Sep 13, 2022 · US
Process for catalytic hydrogenation of halonitroaromatics
US-2022098141-A1 · Mar 31, 2022 · US
Process for preparation of 5-bromo-1,3-dichloro-2-fluoro-benzene
US-2022017439-A1 · Jan 20, 2022 · US
Process for catalytic hydrogenation of halonitroaromatics
US-11225454-B2 · Jan 18, 2022 · US
Process for catalytic hydrogenation of halonitroaromatics
US-2020223784-A1 · Jul 16, 2020 · US
Process for catalytic hydrogenation of halonitroaromatics
US-10562841-B2 · Feb 18, 2020 · US
Process for catalytic hydrogenation of halonitroaromatics
US-2018282258-A1 · Oct 4, 2018 · US
Process for making 2,5-dihalogenated phenol
US-9988333-B2 · Jun 5, 2018 · US
Processes for the diazotization of 2,5-dichloroanilines
US-9878978-B2 · Jan 30, 2018 · US
Processes for the diazotization of 2,5-dichloroanilines
US-2017342022-A1 · Nov 30, 2017 · US
Processes for the diazotization of 2,5-dichloroanilines
US-9695114-B2 · Jul 4, 2017 · US
Process for Making 2,5-Dihalogenated Phenol
US-2017174603-A1 · Jun 22, 2017 · US
Processes for the diazotization of 2,5-dichloroanilines
US-2016318853-A1 · Nov 3, 2016 · US