Preparation method of selenium-containing heterocyclic compounds
US-11548862-B2 · Jan 10, 2023 · US
not condensed with other rings · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D293/02 |
| Official title | not condensed with other rings |
| Display label | not condensed with other rings |
| Total patents | 4 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11548862-B2 · Jan 10, 2023 · US
US-2022169623-A1 · Jun 2, 2022 · US
US-9796758-B2 · Oct 24, 2017 · US
US-2015045506-A1 · Feb 12, 2015 · US