- All sections
- B - Performing operations; transporting
- B66C - Cranes; load-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 23/92 - Snubbers or dash-pots for preventing backwards-swinging of jibs, e.g. in the event of cable or tackle breakage
Patent holdings for IPC class B66C 23/92
Total number of patents in this class: 29
10-year publication summary
|
0
|
2
|
1
|
2
|
8
|
0
|
1
|
5
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kobelco Construction Machinery Co., Ltd. | 1048 |
7 |
| Manitowoc Crane Companies, LLC | 173 |
5 |
| Itrec B.V. | 477 |
2 |
| Manitowoc Crane Group France SAS | 96 |
2 |
| Deme Offshore BE NV | 44 |
2 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 341 |
1 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
1 |
| Liebherr-Werk Biberach GmbH | 193 |
1 |
| Montanhydraulik GmbH | 2 |
1 |
| National Oilwell Varco, L.P. | 1604 |
1 |
| T & T Engineering Services | 7 |
1 |
| T & T Engineering Services, Inc. | 26 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 344 |
1 |
| Sumitomo Heavy Industries Construction Cranes Co., Ltd. | 50 |
1 |
| Beijing Sany Heavy Machine Co., Ltd | 9 |
1 |
| Deme Offshore Holding N.V. | 5 |
1 |
| Other owners | 0 |