Method of assemblying and operating an autorotating payload delivery device
US-2026001645-A1 · Jan 1, 2026 · US
Other constructional elements; Rotor balancing · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64C27/028 |
| Official title | {Other constructional elements; Rotor balancing} |
| Display label | Other constructional elements; Rotor balancing |
| Total patents | 9 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2025 | 3 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026001645-A1 · Jan 1, 2026 · US
US-12434822-B2 · Oct 7, 2025 · US
US-2025051007-A1 · Feb 13, 2025 · US
US-2025051008-A1 · Feb 13, 2025 · US
US-2020292410-A1 · Sep 17, 2020 · US
US-10501174-B2 · Dec 10, 2019 · US
US-2019009896-A1 · Jan 10, 2019 · US
US-10131424-B2 · Nov 20, 2018 · US
US-2017197709-A1 · Jul 13, 2017 · US