Preparation method for triphenylchloromethane
US-12091375-B2 · Sep 17, 2024 · US
without replacement of the other oxygen atom of the carboxyl group, e.g. imino-ethers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C257/04 |
| Official title | without replacement of the other oxygen atom of the carboxyl group, e.g. imino-ethers |
| Display label | without replacement of the other oxygen atom of the carboxyl group, e.g. imino-ethers |
| Total patents | 6 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12091375-B2 · Sep 17, 2024 · US
US-2022234970-A1 · Jul 28, 2022 · US
US-10125112-B2 · Nov 13, 2018 · US
US-2017144984-A1 · May 25, 2017 · US
US-9452973-B2 · Sep 27, 2016 · US
US-2015119426-A1 · Apr 30, 2015 · US