- All sections
- B - Performing operations; transporting
- B66C - Cranes; load-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: 38
10-year publication summary
|
2
|
1
|
3
|
3
|
3
|
4
|
5
|
3
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHC Holland IE B.V. | 277 |
5 |
| Peinemann Equipment B.V. | 20 |
3 |
| Deme Offshore BE NV | 44 |
3 |
| Itrec B.V. | 477 |
2 |
| Cape Holland Holding B.V. | 9 |
2 |
| Boart Longyear Company | 262 |
2 |
| Deme Offshore Holding N.V. | 5 |
2 |
| f.lli Righini S.r.l. | 10 |
2 |
| Iqip Holding B.V. | 47 |
2 |
| Balltec Limited | 31 |
1 |
| CPS Investment Holdings Pty Ltd | 3 |
1 |
| Kso Enterprises, Inc. | 1 |
1 |
| Nabors Drilling Technologies USA, Inc. | 533 |
1 |
| National Oilwell Varco, L.P. | 1604 |
1 |
| Oceaneering International, Inc. | 413 |
1 |
| Petersen Resources LLC | 16 |
1 |
| Petroleo Brasileiro S.A. - Petrobras | 730 |
1 |
| Wtb Group Limited | 2 |
1 |
| Siemens Gamesa Renewable Energy A/S | 1647 |
1 |
| L' Oréal | 5103 |
1 |
| Other owners | 4 |