Chargeable hoists, in-rail charging assemblies, subject transport units, and related methods
US-2025382159-A1 · Dec 18, 2025 · US
Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20)
Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20) · 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 | B66C11/04 |
| Official title | Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20) |
| Display label | Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20) |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
OHT vehicle traction device and method for recoverying malfunctioned vehicle
US-12441374-B2 · Oct 14, 2025 · US
Article transport vehicle
US-12387961-B2 · Aug 12, 2025 · US
Transport apparatus
US-12330879-B2 · Jun 17, 2025 · US
Ceiling transport vehicle
US-12286296-B2 · Apr 29, 2025 · US
Overhead traveling vehicle and overhead traveling vehicle fault processing system
US-12280947-B2 · Apr 22, 2025 · US
Construction and/or materials-handling machine and method for guiding and moving a working head
US-12209422-B2 · Jan 28, 2025 · US
Lifting mechanism for overhead monorail and overhead monorail
US-12091289-B2 · Sep 17, 2024 · US
Hoist for transferred materials in underground auxiliary transportation system and method thereof
US-11919748-B2 · Mar 5, 2024 · US
Transport apparatus
US-2024017928-A1 · Jan 18, 2024 · US
Article transport facility
US-11873199-B2 · Jan 16, 2024 · US
Article Transport Vehicle
US-2024014058-A1 · Jan 11, 2024 · US
Frame structure of hoist
US-11840429-B2 · Dec 12, 2023 · US
Hoist for transferred materials in underground auxiliary transportation system and method thereof
US-2023382691-A1 · Nov 30, 2023 · US
Hoisting device
US-11807500-B2 · Nov 7, 2023 · US
Jig supporting reduction gear of robot and method of replacing reduction gear using jig
US-11698125-B2 · Jul 11, 2023 · US
Hoisting arrangement of a hoist of a crane
US-11554938-B2 · Jan 17, 2023 · US
Ceiling transport vehicle
US-2022402694-A1 · Dec 22, 2022 · US
Container crane comprising reference marker
US-11530118-B2 · Dec 20, 2022 · US
Article Transport Facility
US-2022371866-A1 · Nov 24, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B66C11/04?
- CPC B66C11/04 is the Cooperative Patent Classification code for “Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20).”
- How many patents are filed under CPC B66C11/04 (Underhung trolleys (power-operated hoists with driving motor and drum or barrel contained in a common housing B66D3/20))?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC B66C11/04 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).