Electric chain block
US-2023138172-A1 · May 4, 2023 · US
with driving motor, e.g. electric motor, and drum or barrel contained in a common housing
with driving motor, e.g. electric motor, and drum or barrel contained in a common housing · 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 | B66D3/20 |
| Official title | with driving motor, e.g. electric motor, and drum or barrel contained in a common housing |
| Display label | with driving motor, e.g. electric motor, and drum or barrel contained in a common housing |
| Total patents | 86 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 12 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Component lifts having support assemblies
US-2023049994-A1 · Feb 16, 2023 · US
Winding machine and method of controlling driving of winding machine
US-2022396457-A1 · Dec 15, 2022 · US
Hoist
US-2022363524-A1 · Nov 17, 2022 · US
Dual bus architecture for high reliability control of helicopter hoist
US-11492117-B2 · Nov 8, 2022 · US
Method and extraction system for extracting an electronic device from an immersive cooling container
US-2022315399-A1 · Oct 6, 2022 · US
Shutdown buffer for a lifting device, in particular chain hoist, and lifting device herewith
US-11358841-B2 · Jun 14, 2022 · US
Force application assembly, elevator and method of elevator rescue
US-2022169481-A1 · Jun 2, 2022 · US
Person lifting apparatuses including lifting straps and methods of operation based on current draw
US-11344462-B2 · May 31, 2022 · US
Overhead lifts having a release assembly for disengaging an electromagnetic brake and methods for disengaging an electromagnetic brake of an overhead lift
US-2022142841-A1 · May 12, 2022 · US
Net wrap lifting device
US-11299379-B2 · Apr 12, 2022 · US
Programmable controls for a winch
US-11104557-B2 · Aug 31, 2021 · US
Winch including a motor mounted contactor
US-2021261390-A1 · Aug 26, 2021 · US
Electric hoisting machine
US-11059705-B2 · Jul 13, 2021 · US
Net wrap lifting device
US-2021147200-A1 · May 20, 2021 · US
Winch including a motor mounted contactor
US-11001482-B2 · May 11, 2021 · US
Net wrap lifting device
US-10934143-B2 · Mar 2, 2021 · US
Powered sheave with wireline pushing capability
US-10934792-B2 · Mar 2, 2021 · US
Overload protection mechanism for winch
US-2021053806-A1 · Feb 25, 2021 · US
Adjustable length winch apparatus
US-10919740-B2 · Feb 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66D3/20?
- CPC B66D3/20 is the Cooperative Patent Classification code for “with driving motor, e.g. electric motor, and drum or barrel contained in a common housing.”
- How many patents are filed under CPC B66D3/20 (with driving motor, e.g. electric motor, and drum or barrel contained in a common housing)?
- Our database includes 86 publications tagged with this CPC code.
- Is patent activity under CPC B66D3/20 growing?
- Publication counts under this code: 12 in 2024 vs 6 in 2025 (latest complete years).