- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
Patent holdings for IPC class B63B 21/20
Total number of patents in this class: 349
10-year publication summary
|
23
|
30
|
18
|
28
|
25
|
42
|
49
|
55
|
44
|
49
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HG Partners, LLC | 17 |
13 |
| SOFEC, Inc. | 97 |
11 |
| Flintstone Technology Limited | 31 |
10 |
| Single Buoy Moorings Inc. | 315 |
9 |
| Orbital Marine Power Limited | 16 |
7 |
| APL Norway AS | 35 |
6 |
| Technology from Ideas Limited | 12 |
6 |
| Delmar Systems, Inc. | 19 |
5 |
| Interocean Systems LLC | 10 |
5 |
| TFI Marine Limited | 9 |
5 |
| ExxonMobil Upstream Research Company | 2379 |
4 |
| Ideol | 13 |
4 |
| MODEC, Inc. | 24 |
4 |
| University of Maine System Board of Trustees | 289 |
4 |
| Vicinay Marine Innovacion (aie) | 7 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2801 |
3 |
| Akva Group ASA | 14 |
3 |
| Dalian University of Technology | 1538 |
3 |
| Exmar Offshore Company | 17 |
3 |
| Other Lab, LLC | 72 |
3 |
| Other owners | 237 |