- All sections
- B - Performing operationstransporting
- B63B - Ships or other waterborne vesselsequipment for shipping
- B63B 35/03 - Pipe-laying vessels
Patent holdings for IPC class B63B 35/03
Total number of patents in this class: 251
10-year publication summary
|
27
|
28
|
18
|
15
|
12
|
11
|
11
|
3
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saipem S.p.A. | 528 |
42 |
| Itrec B.V. | 504 |
41 |
| Subsea 7 do Brasil Servicos LTDA | 42 |
11 |
| Halliburton Energy Services, Inc. | 21299 |
8 |
| Technip France | 670 |
8 |
| Southwire Company, LLC | 808 |
6 |
| Subsea 7 Limited | 242 |
6 |
| Shanghai Zhenhua Heavy Industries Co., Ltd. | 42 |
5 |
| CCCC First Harbor Engineering Co., Ltd. | 54 |
5 |
| Acergy France SAS | 138 |
4 |
| Heerema Marine Contractors Nederland B.V. | 19 |
4 |
| Maats Tech Limited | 7 |
4 |
| Petroleo Brasileiro S.A. - Petrobras | 979 |
3 |
| Royal IHC Limited | 19 |
3 |
| Laytrix Limited | 4 |
3 |
| Cortez Subsea Limited | 2 |
2 |
| Heerema Marine Contractors Nederland SE | 59 |
2 |
| Marmon Utility LLC | 60 |
2 |
| Nagaki Seiki Co., Ltd. | 181 |
2 |
| Saipem S.A. | 232 |
2 |
| Other owners | 88 |