- All sections
- B - Performing operationstransporting
- B63C - Launching, hauling-out, or dry-docking of vesselslife-saving in waterequipment for dwelling or working under watermeans for salvaging or searching for underwater objects
- B63C 11/52 - Tools specially adapted for working underwater, not otherwise provided for
Patent holdings for IPC class B63C 11/52
Total number of patents in this class: 412
10-year publication summary
|
25
|
29
|
33
|
43
|
41
|
33
|
38
|
37
|
34
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Oceaneering International, Inc. | 428 |
16 |
| Saudi Arabian Oil Company | 13540 |
13 |
| Magseis FF LLC | 134 |
9 |
| Subsea 7 Limited | 223 |
8 |
| Petroleo Brasileiro S.A. - Petrobras | 872 |
7 |
| Tangshan Harbin Ship Technology Co., Ltd. | 204 |
7 |
| Kawasaki Heavy Industries, Limited | 1641 |
6 |
| FMC Technologies, Inc. | 613 |
6 |
| Resolve Marine Group, Inc. | 19 |
6 |
| Zhejiang University | 3230 |
6 |
| Guangdong Ocean University | 169 |
6 |
| Saipem S.p.A. | 520 |
5 |
| Nautilus Minerals Singapore Pte Ltd | 7 |
5 |
| Dalian University of Technology | 1537 |
4 |
| Tianjin University | 825 |
4 |
| Uemis AG | 4 |
4 |
| Jiangsu University of Science and Technology | 385 |
4 |
| Gregg Drilling, LLC | 11 |
4 |
| Westlake University | 164 |
4 |
| Tangshan Hydrience Marine Technology Co., Ltd. | 149 |
4 |
| Other owners | 284 |