Brake device, lever hoist, and ratchet mechanism
US-2026062263-A1 · Mar 5, 2026 · US
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having latches
having latches · 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 | B66D5/34 |
| Official title | having latches |
| Display label | having latches |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Brake device, lever hoist, and ratchet mechanism
US-12479703-B2 · Nov 25, 2025 · US
Lifting and transport device
US-2025270076-A1 · Aug 28, 2025 · US
Lifting and transport device
US-12304781-B2 · May 20, 2025 · US
Unmanned aerial vehicle delivery systems
US-2025108919-A1 · Apr 3, 2025 · US
Unmanned aerial vehicle delivery systems
US-11884397-B2 · Jan 30, 2024 · US
Unmanned aerial vehicle delivery systems
US-2023331386-A1 · Oct 19, 2023 · US
Unmanned aerial vehicle delivery systems
US-2023331384-A1 · Oct 19, 2023 · US
Unmanned aerial vehicle delivery systems
US-2023331383-A1 · Oct 19, 2023 · US
Brake device, lever hoist, and ratchet mechanism
US-2023143207-A1 · May 11, 2023 · US
Lifting and transport device
US-2022297990-A1 · Sep 22, 2022 · US
Effort transmission module
US-10850957-B2 · Dec 1, 2020 · US
Effort transmission module
US-2019330032-A1 · Oct 31, 2019 · US
Safety brake for a lifting device
US-10112813-B2 · Oct 30, 2018 · US
Winch drum tension isolation system
US-2018237277-A1 · Aug 23, 2018 · US
Safety Brake For a Lifting Device
US-2018002148-A1 · Jan 4, 2018 · US
Locking apparatus to prevent movement of an elevator car
US-9751726-B2 · Sep 5, 2017 · US
Safety brake for a lifting gear
US-9731946-B2 · Aug 15, 2017 · US
Winch drum tension isolation system
US-9676559-B2 · Jun 13, 2017 · US
Winch drum tension isolation system
US-2017036862-A1 · Feb 9, 2017 · US