- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 1/50 - Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchorsWarping or mooring winch-cable tension control
Patent holdings for IPC class B66D 1/50
Total number of patents in this class: 214
10-year publication summary
|
14
|
9
|
13
|
23
|
22
|
19
|
21
|
14
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10372 |
5 |
| Itrec B.V. | 496 |
4 |
| Liebherr-components Biberach GmbH | 226 |
4 |
| Samsung Heavy Ind. Co., Ltd. | 239 |
4 |
| Stimline AS | 27 |
4 |
| Warn Industries, Inc. | 198 |
4 |
| Schlumberger Canada Limited | 7185 |
3 |
| ABB Schweiz AG | 6794 |
3 |
| China University of Mining and Technology | 1231 |
3 |
| Kobelco Construction Machinery Co., Ltd. | 1083 |
3 |
| Parkburn Precision Handling Systems Limited | 11 |
3 |
| Avetics Global Pte Ltd | 3 |
3 |
| Tugpins B.V. | 7 |
3 |
| Infravision Holdings Pty Ltd | 11 |
3 |
| Schlumberger Technology B.v. | 5090 |
2 |
| Schlumberger Holdings Limited | 2861 |
2 |
| Toyota Motor Corporation | 30724 |
2 |
| Caterpillar Inc. | 9267 |
2 |
| Altec Industries, Inc. | 189 |
2 |
| C6 Technologies AS | 34 |
2 |
| Other owners | 153 |