Hydraulic system for rapid mooring device of offshore operation helicopter and control method
US-2025002174-A1 · Jan 2, 2025 · US
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for handling seaplanes
for handling seaplanes · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B64F1/221 |
| Official title | for handling seaplanes |
| Display label | for handling seaplanes |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic system for rapid mooring device of offshore operation helicopter and control method
US-12179937-B1 · Dec 31, 2024 · US
Deployable apparatus to prevent helicopter rollover
US-11618588-B2 · Apr 4, 2023 · US
Deployable Apparatus to Prevent Helicopter Rollover
US-2021024226-A1 · Jan 28, 2021 · US
Deployable apparatus to prevent helicopter rollover
US-10836511-B2 · Nov 17, 2020 · US
Nose gear steering apparatus for shipboard operations
US-2019168865-A1 · Jun 6, 2019 · US
Deployable Apparatus to Prevent Helicopter Rollover
US-2018305040-A1 · Oct 25, 2018 · US
Method and vehicle traffic control system
US-10068474-B2 · Sep 4, 2018 · US
Method and vehicle traffic control system
US-2018096598-A1 · Apr 5, 2018 · US
Nose gear steering apparatus for shipboard operations
US-2017297683-A1 · Oct 19, 2017 · US