- All sections
- B - Performing operations; transporting
- B63B - Ships or other waterborne vessels; equipment for shipping
- B63B 35/03 - Pipe-laying vessels
Patent holdings for IPC class B63B 35/03
Total number of patents in this class: 253
10-year publication summary
|
27
|
27
|
28
|
18
|
15
|
12
|
11
|
10
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saipem S.p.A. | 510 |
45 |
| Itrec B.V. | 493 |
43 |
| Subsea 7 do Brasil Servicos LTDA | 36 |
10 |
| Halliburton Energy Services, Inc. | 20411 |
8 |
| Technip France | 717 |
8 |
| Heerema Marine Contractors Nederland B.V. | 28 |
6 |
| Shanghai Zhenhua Heavy Industries Co., Ltd. | 35 |
6 |
| Southwire Company, LLC | 774 |
6 |
| Subsea 7 Limited | 215 |
5 |
| CCCC First Harbor Engineering Co., Ltd. | 29 |
5 |
| Acergy France SAS | 126 |
4 |
| Maats Tech Limited | 7 |
4 |
| Petroleo Brasileiro S.A. - Petrobras | 779 |
3 |
| Royal IHC Limited | 15 |
3 |
| Laytrix Limited | 4 |
3 |
| Acergy UK Limited | 10 |
2 |
| Cortez Subsea Limited | 2 |
2 |
| Heerema Marine Contractors Nederland SE | 58 |
2 |
| Marmon Utility LLC | 58 |
2 |
| Nagaki Seiki Co., Ltd. | 168 |
2 |
| Other owners | 84 |