- All sections
- B - Performing operations; transporting
- B66C - Cranes; load-engaging elements or devices for cranes, capstans, winches, or tackles
- B66C 23/60 - Derricks
Patent holdings for IPC class B66C 23/60
Total number of patents in this class: 26
10-year publication summary
3
|
4
|
3
|
3
|
4
|
2
|
4
|
2
|
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 |
3 |
Coastal Cargo Company, LLC | 15 |
2 |
Drill Rig Spares Pty Ltd | 6 |
2 |
Forum US, Inc. | 315 |
2 |
Liebherr-Werk Biberach GmbH | 193 |
2 |
Itrec B.V. | 477 |
1 |
Liebherr-Werk Ehingen GmbH | 181 |
1 |
Nabors Industries, Inc. | 38 |
1 |
National Oilwell Varco, L.P. | 1604 |
1 |
National Oilwell Varco Norway AS | 109 |
1 |
Oceaneering International, Inc. | 413 |
1 |
Oz Lifting Products, LLC | 23 |
1 |
Stimline AS | 26 |
1 |
Phoenix Services, LLC | 5 |
1 |
Xuzhou Construction Machinery Group Co., Ltd. | 19 |
1 |
China Three Gorges Corporation | 119 |
1 |
Svitzer Salvage B.V. | 1 |
1 |
Coastal Cargo Company | 1 |
1 |
China Three Gorges Construction Engineering Corporation | 6 |
1 |
Deal S.r.l. | 1 |
1 |
Other owners | 0 |