- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16L - Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
- F16L 13/02 - Welded joints
Patent holdings for IPC class F16L 13/02
Total number of patents in this class: 513
10-year publication summary
|
53
|
52
|
39
|
54
|
35
|
51
|
45
|
22
|
30
|
0
|
| 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 |
23 |
| Saipem S.A. | 226 |
21 |
| Subsea 7 Limited | 215 |
18 |
| Pioneer Lining Technology Limited | 32 |
11 |
| Acergy France SAS | 126 |
10 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 488 |
9 |
| Saudi Arabian Oil Company | 12390 |
7 |
| Technip France | 717 |
7 |
| Nippon Steel Corporation | 5982 |
6 |
| Webco Industries, Inc. | 30 |
6 |
| Minimax Viking Research & Development GmbH | 145 |
6 |
| The Boeing Company | 19900 |
5 |
| Bluemarine Offshore Yard Service B.V. | 19 |
5 |
| Swagelok Company | 327 |
5 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 196 |
5 |
| LPS IP LLC | 7 |
5 |
| Borealis AG | 2698 |
4 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 543 |
4 |
| Heerema Marine Contractors Nederland SE | 58 |
4 |
| Pipeline Induction Heat Limited | 27 |
4 |
| Other owners | 348 |