- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 1/56 - Internally-expanding grippers for handling hollow articles for handling tubes
Patent holdings for IPC class B66C 1/56
Total number of patents in this class: 41
10-year publication summary
|
1
|
3
|
3
|
2
|
2
|
4
|
3
|
4
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2
|
2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHC Holland IE B.V. | 265 |
5 |
| Iqip Holding B.V. | 56 |
5 |
| Peinemann Equipment B.V. | 18 |
3 |
| Deme Offshore BE NV | 45 |
3 |
| f.lli Righini S.r.l. | 11 |
3 |
| Itrec B.V. | 504 |
2 |
| Cape Holland Holding B.V. | 13 |
2 |
| Deme Offshore Holding N.V. | 8 |
2 |
| Boart Longyear Manufacturing and Distribution Inc. | 112 |
2 |
| Balltec Limited | 31 |
1 |
| CPS Investment Holdings Pty Ltd | 3 |
1 |
| Kso Enterprises, Inc. | 1 |
1 |
| Nabors Drilling Technologies USA, Inc. | 561 |
1 |
| National Oilwell Varco, L.P. | 1682 |
1 |
| Oceaneering International, Inc. | 422 |
1 |
| Petersen Resources LLC | 19 |
1 |
| Petroleo Brasileiro S.A. - Petrobras | 855 |
1 |
| Wtb Group Limited | 2 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1890 |
1 |
| L' Oréal | 5536 |
1 |
| Other owners | 3 |