- All sections
- B - Performing operations; transporting
- B66D - Capstans; winches; tackles, e.g. pulley blocks; hoists
- B66D 1/06 - Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
Patent holdings for IPC class B66D 1/06
Total number of patents in this class: 20
10-year publication summary
|
0
|
5
|
3
|
3
|
2
|
0
|
2
|
3
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| W.W. Patterson Company | 8 |
4 |
| Arcosa Marine Products, Inc. | 12 |
3 |
| Columbus McKinnon Industrial Products GmbH | 31 |
2 |
| Dutton-lainson Company | 39 |
2 |
| Feradyne Outdoors, LLC | 332 |
2 |
| Eastman Outdoors, Inc. | 2 |
1 |
| Joerns Healthcare, LLC | 88 |
1 |
| Multilift, Inc. | 21 |
1 |
| Reid Lifting Limited | 15 |
1 |
| Skylotec GmbH | 117 |
1 |
| Steiner, Donald J. | 2 |
1 |
| Wedgerock LLC | 11 |
1 |
| Other owners | 0 |