- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 3/22 - Power-operated hoists with driving motor, e.g. electric motor, and drum or barrel contained in a common housing with variable-speed gearing between driving motor and drum or barrel
Patent holdings for IPC class B66D 3/22
Total number of patents in this class: 34
10-year publication summary
|
4
|
5
|
2
|
2
|
8
|
2
|
2
|
0
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| KITO Corporation | 184 |
4 |
| Hornet Acquisitionco, LLC | 82 |
3 |
| Breeze-eastern LLC | 14 |
2 |
| Mile Marker (Shenzhen) Limited | 12 |
2 |
| ITC Services, Inc. | 2 |
2 |
| Wenling Minghua Gear Co., Ltd. | 8 |
2 |
| Airbus Helicopters Deutschland GmbH | 329 |
1 |
| Cameron International Corporation | 1371 |
1 |
| Columbus McKinnon Corporation | 88 |
1 |
| Drillform Technical Services Ltd. | 43 |
1 |
| HOFFMANN Fördertechnik GmbH Wurzen | 2 |
1 |
| Kojun-tech LLC | 1 |
1 |
| Mazzella Lifting Technologies, Inc. | 56 |
1 |
| R. Stahl Schaltgeräte GmbH | 152 |
1 |
| Zhejiang Nowvow Mechanical and Electrical Corp., Ltd | 14 |
1 |
| Helisar | 1 |
1 |
| Walmart Apollo, LLC | 6575 |
1 |
| Shanghai Austri Wind Power Technology Co., Ltd. | 3 |
1 |
| Sapelem | 8 |
1 |
| Greenlee Tools, Inc. | 192 |
1 |
| Other owners | 5 |