Double pulley, rescue device comprising such double pulley and method for using such rescue device
US-12428273-B2 · Sep 30, 2025 · US
This page is not indexed by search engines while we improve data quality.
Openable pulley blocks
Openable pulley blocks · 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 | B66D3/046 |
| Official title | {Openable pulley blocks} |
| Display label | Openable pulley blocks |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pulley with secure opening
US-2022306436-A1 · Sep 29, 2022 · US
Clamping pulley
US-11401138-B2 · Aug 2, 2022 · US
Pulley with secure opening
US-11390501-B2 · Jul 19, 2022 · US
Double pulley, rescue device comprising such double pulley and method for using such rescue device
US-2022106171-A1 · Apr 7, 2022 · US
Clamping pulley
US-2021122617-A1 · Apr 29, 2021 · US
Pulley with secure opening
US-2021087028-A1 · Mar 25, 2021 · US
Pulley descender
US-10828516-B2 · Nov 10, 2020 · US
Pulley descender
US-2020031638-A1 · Jan 30, 2020 · US
Pulley device
US-9617128-B2 · Apr 11, 2017 · US
Pulley with unlockable clamp
US-9120654-B2 · Sep 1, 2015 · US
Pulley device
US-2015183624-A1 · Jul 2, 2015 · US