Organic electroluminescent materials and devices
US-11322691-B2 · May 3, 2022 · US
[b,f]-condensed · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07D337/14 |
| Official title | [b,f]-condensed |
| Display label | [b,f]-condensed |
| Total patents | 2 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2022 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11322691-B2 · May 3, 2022 · US
US-2019036031-A1 · Jan 31, 2019 · US