Organic electroluminescent compound and organic electroluminescent device comprising the same
US-12284910-B2 · Apr 22, 2025 · US
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Eight-membered rings
Eight-membered rings · 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 | C07D337/16 |
| Official title | Eight-membered rings |
| Display label | Eight-membered rings |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2018 | 3 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic electroluminescent compound and organic electroluminescent device comprising the same
US-2022052272-A1 · Feb 17, 2022 · US
Extreme ultraviolet photoresist and method
US-11003076-B2 · May 11, 2021 · US
Extreme Ultraviolet Photoresist and Method
US-2019384172-A1 · Dec 19, 2019 · US
Extreme ultraviolet photoresist and method
US-10401728-B2 · Sep 3, 2019 · US
Extreme Ultraviolet Photoresist and Method
US-2018341175-A1 · Nov 29, 2018 · US
Extreme ultraviolet photoresist and method
US-10042252-B2 · Aug 7, 2018 · US
Extreme Ultraviolet Photoresist and Method
US-2018149971-A1 · May 31, 2018 · US