- All sections
- B - Performing operationstransporting
- B66D - Capstanswinchestackles, e.g. pulley blockshoists
- B66D 1/82 - Rope, cable, or chain winding mechanismsCapstans adapted for special purposes for slewing and hoisting by means of derricks
Patent holdings for IPC class B66D 1/82
Total number of patents in this class: 9
10-year publication summary
|
0
|
4
|
1
|
1
|
1
|
0
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Absolute Oilfield Equipment, LLC | 4 |
2 |
| Cameron Technologies Limited | 34 |
2 |
| Schlumberger Technology Corporation | 11549 |
1 |
| Cameron International Corporation | 1368 |
1 |
| Nabors Drilling Technologies USA, Inc. | 575 |
1 |
| Stimline AS | 26 |
1 |
| Structurebot, LLC | 1 |
1 |
| Other owners | 0 |