- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
Patent holdings for IPC class F16L 15/00
Total number of patents in this class: 904
10-year publication summary
|
69
|
70
|
89
|
81
|
59
|
62
|
62
|
57
|
45
|
34
|
| 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 | 459 |
121 |
| Nippon Steel Corporation | 6482 |
97 |
| Hydril Company | 93 |
33 |
| JFE Steel Corporation | 7054 |
21 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
17 |
| Tenaris Connections B.V. | 179 |
14 |
| National Oilwell Varco, L.P. | 1699 |
12 |
| Vallourec Mannesmann Oil & Gas France | 58 |
12 |
| Robert Bosch GmbH | 43063 |
10 |
| Nippon Steel Corporation | 27 |
10 |
| Halliburton Energy Services, Inc. | 21078 |
9 |
| Marubeni-Itochu Tubulars America Inc. | 15 |
7 |
| Saudi Arabian Oil Company | 13656 |
7 |
| Husqvarna AB | 2958 |
6 |
| Single Buoy Moorings Inc. | 315 |
6 |
| Vetco Gray Inc. | 147 |
6 |
| Baker Hughes, a GE Company, LLC | 2106 |
6 |
| Schlumberger Technology Corporation | 11054 |
5 |
| Weatherford Technology Holdings, LLC | 2033 |
5 |
| ArcelorMittal Tubular Products Luxembourg S.A. | 10 |
5 |
| Other owners | 495 |