Preparation of 2,6- and 2,7-disubstituted anthraquinone derivates
US-10227281-B2 · Mar 12, 2019 · US
This page is not indexed by search engines while we improve data quality.
Quinones
Quinones · 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 | C07C50/00 |
| Official title | Quinones |
| Display label | Quinones |
| Total patents | 4 |
Filing trend
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 | 1 |
| 2018 | 2 |
| 2019 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivates
US-2018215694-A1 · Aug 2, 2018 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivatives
US-9988268-B2 · Jun 5, 2018 · US
Preparation of 2,6- and 2,7-disubstituted anthraquinone derivatives
US-2017197830-A1 · Jul 13, 2017 · US