- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 15/04 - Screw-threaded jointsForms of screw-threads for such joints with additional sealings
Patent holdings for IPC class F16L 15/04
Total number of patents in this class: 757
10-year publication summary
|
46
|
52
|
69
|
46
|
48
|
40
|
40
|
33
|
22
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vallourec Oil and Gas France | 454 |
173 |
| Nippon Steel Corporation | 6220 |
137 |
| JFE Steel Corporation | 6827 |
49 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
48 |
| Sumitomo Metal Industries, Ltd. | 383 |
25 |
| Vallourec Mannesmann Oil & Gas France | 62 |
25 |
| Vallourec Oil and Gas France | 12 |
10 |
| Toyo Drilube Co., Ltd. | 12 |
8 |
| Nippon Pillar Packing Co., Ltd. | 254 |
7 |
| Reliance Worldwide Corporation | 327 |
7 |
| Henkel AG & Co. KGaA | 10568 |
6 |
| Halliburton Energy Services, Inc. | 20871 |
5 |
| Hydril Company | 93 |
5 |
| Metal One Corporation | 18 |
5 |
| Swagelok Company | 320 |
5 |
| OPW Fueling Components, LLC | 71 |
5 |
| Daizo Corporation | 58 |
4 |
| Hitachi Zosen Corporation | 619 |
3 |
| Waters Technologies Corporation | 1694 |
3 |
| KC Intellectual Properties, LLC | 5 |
3 |
| Other owners | 224 |