having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C43/257 |
| Official title | having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings |
| Display label | having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings |
| Total patents | 5 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2019 | 2 |
| 2021 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11066351-B2 · Jul 20, 2021 · US
US-10217943-B2 · Feb 26, 2019 · US
US-2019031586-A1 · Jan 31, 2019 · US
US-2017125687-A1 · May 4, 2017 · US
US-9583716-B2 · Feb 28, 2017 · US