- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 21/04 - Fastening or guiding equipment for chains, ropes, hawsers, or the like
Patent holdings for IPC class B63B 21/04
Total number of patents in this class: 334
10-year publication summary
|
33
|
22
|
29
|
28
|
35
|
38
|
41
|
26
|
32
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Flintstone Technology Limited | 34 |
12 |
| Svitzer A/S | 46 |
12 |
| APL Norway AS | 36 |
9 |
| Single Buoy Moorings Inc. | 311 |
8 |
| Worthington Products, Inc. | 21 |
7 |
| Akva Group ASA | 15 |
5 |
| Kongsberg Maritime AS | 131 |
5 |
| SOFEC, Inc. | 80 |
5 |
| Orbital Marine Power Limited | 16 |
5 |
| Thales SA | 2393 |
4 |
| Bombardier Recreational Products Inc. | 1528 |
4 |
| R & D Shed, L.L.C. | 7 |
4 |
| Subsea 7 Limited | 242 |
4 |
| Nylacast Engineered Products Limited | 12 |
4 |
| Chevron U.S.A. Inc. | 4170 |
3 |
| APL Technology AS | 17 |
3 |
| Bardex Corporation | 51 |
3 |
| Bluewater Energy Services B.V. | 50 |
3 |
| Fjord, Inc. | 59 |
3 |
| Grant Prideco, Inc. | 453 |
3 |
| Other owners | 228 |