- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 50/00 - Obtaining minerals from underwater, not otherwise provided for
Patent holdings for IPC class E21C 50/00
Total number of patents in this class: 169
10-year publication summary
|
11
|
16
|
8
|
13
|
15
|
15
|
12
|
17
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Deeptech NV | 11 |
9 |
| Impossible Metals Inc. | 18 |
9 |
| IHC Holland IE B.V. | 260 |
8 |
| Japan Agency for Marine-Earth Science and Technology | 172 |
7 |
| Nautilus Minerals Pacific Pty Ltd | 26 |
7 |
| Nautilus Minerals Singapore Pte Ltd | 7 |
7 |
| Deep Reach Technology, Inc. | 15 |
5 |
| Weir Minerals Netherlands B.V. | 64 |
5 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 243 |
4 |
| Korea Institute of Ocean Science & Technology | 434 |
4 |
| Mhwirth GmbH | 55 |
4 |
| Ocean University of China | 204 |
4 |
| Soil Machine Dynamics Limited | 26 |
4 |
| Technip France | 690 |
4 |
| TOA Corporation | 131 |
4 |
| Bauer Maschinen GmbH | 237 |
3 |
| Cameron International Corporation | 1368 |
3 |
| Qingdao Institute of Marine Geology | 15 |
3 |
| Sea to Sky Energy Solutions Corp. | 7 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9023 |
2 |
| Other owners | 70 |