- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 1/44 - Gripping members engaging only the external or internal surface of the articles and applying frictional forces
Patent holdings for IPC class B66C 1/44
Total number of patents in this class: 165
10-year publication summary
|
7
|
11
|
15
|
24
|
18
|
19
|
17
|
15
|
16
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vacuworx Global, LLC | 35 |
8 |
| Cranemasters, Inc. | 16 |
5 |
| IHC Holland IE B.V. | 264 |
5 |
| Frank's International, LLC | 239 |
4 |
| Zoetis Services LLC | 1539 |
4 |
| China Aluminum International Engineering Corporation Limited | 89 |
3 |
| STT WebOS, Inc. | 10 |
3 |
| Weir Minerals Australia, Ltd. | 307 |
3 |
| Jiangsu GoldWind Science & Technology Co., Ltd. | 63 |
3 |
| Chengdu Shiwei Technology Co., Ltd | 4 |
3 |
| Altec Industries, Inc. | 203 |
2 |
| Balltec Limited | 30 |
2 |
| Construction Robotics, LLC | 10 |
2 |
| Cornell University | 3301 |
2 |
| Heerema Marine Contractors Nederland SE | 59 |
2 |
| Itrec B.V. | 503 |
2 |
| LaValley Industries, LLC | 69 |
2 |
| Murata Machinery, Ltd. | 1497 |
2 |
| Symbotic, LLC | 417 |
2 |
| The University of Chicago | 1402 |
2 |
| Other owners | 104 |