- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans 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: 544
10-year publication summary
|
52
|
39
|
54
|
35
|
51
|
47
|
24
|
34
|
26
|
24
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Subsea 7 Limited | 238 |
25 |
| Saipem S.p.A. | 529 |
22 |
| Saipem S.A. | 232 |
19 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 718 |
12 |
| Acergy France SAS | 137 |
10 |
| Hefei Midea Heating & Ventilating Equipment Co., Ltd. | 342 |
9 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 768 |
8 |
| Pioneer Lining Technology Limited | 22 |
8 |
| Saudi Arabian Oil Company | 14305 |
8 |
| Technip France | 674 |
7 |
| Nippon Steel Corporation | 6932 |
6 |
| SaniSure, Inc. | 51 |
6 |
| Webco Industries, Inc. | 37 |
6 |
| Minimax Viking Research & Development GmbH | 115 |
6 |
| The Boeing Company | 20186 |
5 |
| Bluemarine Offshore Yard Service B.V. | 16 |
5 |
| Swagelok Company | 316 |
5 |
| Heerema Marine Contractors Nederland SE | 59 |
4 |
| ITP SA | 50 |
4 |
| Pipeline Induction Heat Limited | 24 |
4 |
| Other owners | 365 |