N-type semiconductor, and organic photoelectric device, image sensor, and electronic device including the same
US-12317743-B2 · May 27, 2025 · US
the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C255/35 |
| Official title | the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups |
| Display label | the carbon skeleton being further substituted by halogen atoms, or by nitro or nitroso groups |
| Total patents | 62 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 1 |
| 2023 | 16 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12317743-B2 · May 27, 2025 · US
US-2025154412-A1 · May 15, 2025 · US
US-2025026715-A1 · Jan 23, 2025 · US
US-2025023099-A1 · Jan 16, 2025 · US
US-12100807-B2 · Sep 24, 2024 · US
US-2024182471-A1 · Jun 6, 2024 · US
US-2024116848-A1 · Apr 11, 2024 · US
US-11912704-B2 · Feb 27, 2024 · US
US-11871663-B2 · Jan 9, 2024 · US
US-2023345823-A1 · Oct 26, 2023 · US
US-2023314934-A1 · Oct 5, 2023 · US
US-11767299-B2 · Sep 26, 2023 · US
US-11737359-B2 · Aug 22, 2023 · US
US-2023247901-A1 · Aug 3, 2023 · US
US-2023247900-A1 · Aug 3, 2023 · US
US-2023240138-A1 · Jul 27, 2023 · US
US-2023240139-A1 · Jul 27, 2023 · US
US-2023240132-A1 · Jul 27, 2023 · US
US-2023240137-A1 · Jul 27, 2023 · US
US-2023232711-A1 · Jul 20, 2023 · US
Answers are generated from the same data shown on this page.