Rotorcraft including circular wings
US-12509224-B2 · Dec 30, 2025 · US
with radial airflow · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64C39/064 |
| Official title | {with radial airflow} |
| Display label | with radial airflow |
| Total patents | 11 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12509224-B2 · Dec 30, 2025 · US
US-12097958-B2 · Sep 24, 2024 · US
US-2024150013-A1 · May 9, 2024 · US
US-11891177-B2 · Feb 6, 2024 · US
US-11579059-B2 · Feb 14, 2023 · US
US-2022380040-A1 · Dec 1, 2022 · US
US-2021237861-A1 · Aug 5, 2021 · US
US-2020148345-A1 · May 14, 2020 · US
US-2019391059-A1 · Dec 26, 2019 · US
US-10407167-B1 · Sep 10, 2019 · US
US-9809304-B1 · Nov 7, 2017 · US