- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 21/56 - Towing or pushing equipment
Patent holdings for IPC class B63B 21/56
Total number of patents in this class: 209
10-year publication summary
|
20
|
22
|
23
|
27
|
25
|
21
|
17
|
21
|
13
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Svitzer A/S | 52 |
15 |
| HG Partners, LLC | 17 |
14 |
| Alaska Maritime Prevention and Response Network | 6 |
6 |
| The United States of America as represented by the Secretary of the Navy | 2751 |
5 |
| PGS Geophysical AS | 536 |
5 |
| Fishboat, Inc. | 14 |
4 |
| Global Innovative Sports Incorporated | 6 |
4 |
| Tugpins B.V. | 5 |
4 |
| Gere Marie Corporation | 9 |
3 |
| Kongsberg Maritime AS | 117 |
3 |
| Korea Institute of Ocean Science & Technology | 420 |
3 |
| Martin Operating Partnership L.P., Martin Operating GP LLC, a Delaware limited liability company | 45 |
3 |
| Moran Towing Corporation | 15 |
3 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6112 |
3 |
| Raytheon Company | 8387 |
2 |
| Bombardier Recreational Products Inc. | 1387 |
2 |
| ConocoPhillips Company | 1671 |
2 |
| Minyan Marine LLC | 2 |
2 |
| Nova Patent B.V. | 4 |
2 |
| Remoy Sea Group AS | 4 |
2 |
| Other owners | 122 |