- 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 15/04 - Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
Patent holdings for IPC class F16L 15/04
Total number of patents in this class: 742
10-year publication summary
|
71
|
46
|
52
|
69
|
46
|
48
|
39
|
40
|
32
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vallourec Oil and Gas France | 450 |
174 |
| Nippon Steel Corporation | 5649 |
131 |
| JFE Steel Corporation | 6067 |
49 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
48 |
| Sumitomo Metal Industries, Ltd. | 453 |
28 |
| Vallourec Mannesmann Oil & Gas France | 66 |
27 |
| Nippon Pillar Packing Co., Ltd. | 269 |
8 |
| Reliance Worldwide Corporation | 303 |
7 |
| Toyo Drilube Co., Ltd. | 10 |
7 |
| Henkel AG & Co. KGaA | 10129 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Metal One Corporation | 17 |
5 |
| Swagelok Company | 325 |
5 |
| OPW Fueling Components, LLC | 75 |
5 |
| Daizo Corporation | 58 |
4 |
| Hydril Company | 111 |
4 |
| Hitachi Zosen Corporation | 609 |
3 |
| Tenaris Connections A.G. | 13 |
3 |
| Tenaris Connections B.V. | 171 |
3 |
| Waters Technologies Corporation | 1654 |
3 |
| Other owners | 217 |