- 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 15/00 - Screw-threaded joints; Forms of screw-threads for such joints
Patent holdings for IPC class F16L 15/00
Total number of patents in this class: 884
10-year publication summary
|
80
|
74
|
78
|
100
|
94
|
63
|
66
|
64
|
58
|
10
|
| 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 |
124 |
| Nippon Steel Corporation | 5649 |
109 |
| Hydril Company | 111 |
36 |
| JFE Steel Corporation | 6067 |
17 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
17 |
| Tenaris Connections B.V. | 171 |
16 |
| Vallourec Mannesmann Oil & Gas France | 66 |
13 |
| National Oilwell Varco, L.P. | 1604 |
10 |
| Halliburton Energy Services, Inc. | 20165 |
9 |
| Robert Bosch GmbH | 40953 |
9 |
| Marubeni-Itochu Tubulars America Inc. | 15 |
7 |
| Vetco Gray Inc. | 163 |
7 |
| Husqvarna AB | 2824 |
6 |
| Single Buoy Moorings Inc. | 327 |
6 |
| Sumitomo Metal Industries, Ltd. | 453 |
6 |
| Baker Hughes, a GE Company, LLC | 2171 |
6 |
| Weatherford Technology Holdings, LLC | 2135 |
5 |
| ArcelorMittal Tubular Products Luxembourg S.A. | 10 |
5 |
| Ipex Technologies Inc. | 89 |
5 |
| Materion Corporation | 293 |
5 |
| Other owners | 466 |