Organic electroluminescence element, composition, powder, electronic equipment, and novel compound
US-2022393110-A1 · Dec 8, 2022 · US
Phenanthrenes · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C15/30 |
| Official title | Phenanthrenes |
| Display label | Phenanthrenes |
| Total patents | 95 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 10 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 16 |
| 2023 | 12 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 5 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2022393110-A1 · Dec 8, 2022 · US
US-2022371974-A1 · Nov 24, 2022 · US
US-2022348522-A1 · Nov 3, 2022 · US
US-2022348523-A1 · Nov 3, 2022 · US
US-2022340602-A1 · Oct 27, 2022 · US
US-11482677-B2 · Oct 25, 2022 · US
US-2022320446-A1 · Oct 6, 2022 · US
US-2022093868-A1 · Mar 24, 2022 · US
US-11201299-B2 · Dec 14, 2021 · US
US-10964891-B2 · Mar 30, 2021 · US
US-2021083202-A1 · Mar 18, 2021 · US
US-2021050542-A1 · Feb 18, 2021 · US
US-10897016-B2 · Jan 19, 2021 · US
US-2020325125-A1 · Oct 15, 2020 · US
US-2020291006-A1 · Sep 17, 2020 · US
US-2020006664-A1 · Jan 2, 2020 · US
US-10490747-B2 · Nov 26, 2019 · US
US-10461257-B2 · Oct 29, 2019 · US
US-10454045-B2 · Oct 22, 2019 · US
US-10388882-B2 · Aug 20, 2019 · US
Answers are generated from the same data shown on this page.