- All sections
- B - Performing operationstransporting
- B66C - Cranesload-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 23/52 - Floating cranes
Patent holdings for IPC class B66C 23/52
Total number of patents in this class: 328
10-year publication summary
|
19
|
18
|
27
|
32
|
34
|
29
|
28
|
33
|
33
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Itrec B.V. | 502 |
110 |
| Heerema Marine Contractors Nederland SE | 58 |
12 |
| Saipem S.p.A. | 514 |
8 |
| Gustomsc B.V. | 29 |
8 |
| Siemens Gamesa Renewable Energy A/S | 1847 |
7 |
| J. Ray McDermott, S.A. | 61 |
6 |
| Gatorfur, LLC | 43 |
6 |
| National Oilwell Varco, L.P. | 1640 |
5 |
| National Oilwell Varco Norway AS | 108 |
5 |
| Reel | 20 |
5 |
| Rolls-Royce Marine AS | 69 |
5 |
| Grant Prideco, Inc. | 375 |
4 |
| High Wind N.V. | 8 |
4 |
| Deme Offshore BE NV | 45 |
4 |
| Vestas Wind Systems A/S | 3635 |
3 |
| Norled AS | 7 |
3 |
| Deme Offshore Holding N.V. | 8 |
3 |
| Delta Laboratories Holding B.V. | 13 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2731 |
2 |
| Korea Advanced Institute of Science and Technology | 4304 |
2 |
| Other owners | 123 |