- All sections
- B - Performing operationstransporting
- B66C - Cranesload-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: 30
10-year publication summary
|
1
|
2
|
8
|
0
|
1
|
5
|
3
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kobelco Construction Machinery Co., Ltd. | 1217 |
8 |
| Manitowoc Crane Companies, LLC | 180 |
5 |
| Itrec B.V. | 504 |
3 |
| Manitowoc Crane Group France SAS | 111 |
2 |
| Deme Offshore BE NV | 48 |
2 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
1 |
| Hunan Zoomlion Special Vehicle Co., Ltd. | 361 |
1 |
| Liebherr-Werk Biberach GmbH | 215 |
1 |
| Montanhydraulik GmbH | 2 |
1 |
| National Oilwell Varco, L.P. | 1700 |
1 |
| T & T Engineering Services | 7 |
1 |
| Zoomlion Heavy Industry Science and Technology Co., Ltd. | 404 |
1 |
| Sumitomo Heavy Industries Construction Cranes Co., Ltd. | 59 |
1 |
| Beijing Sany Heavy Machine Co., Ltd | 9 |
1 |
| Deme Offshore Holding N.V. | 8 |
1 |
| Other owners | 0 |