- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/02 - Rigid pipes of metal
Patent holdings for IPC class F16L 9/02
Total number of patents in this class: 422
10-year publication summary
|
48
|
50
|
47
|
33
|
29
|
26
|
21
|
21
|
14
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6271 |
38 |
| JFE Steel Corporation | 6853 |
28 |
| ExxonMobil Chemical Patents Inc. | 3976 |
8 |
| Nibco Inc. | 229 |
8 |
| Baoshan Iron & Steel Co., Ltd. | 963 |
6 |
| LG Electronics Inc. | 73210 |
5 |
| Advanced Drainage Systems, Inc. | 343 |
5 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 167 |
5 |
| NOVA Chemicals (International) S.A. | 772 |
5 |
| Sanoh Industrial Co., Ltd. | 209 |
5 |
| Usui Kokusai Sangyo Kaisha Limited | 70 |
5 |
| Ford Global Technologies, LLC | 20605 |
4 |
| DALMINE S.p.A. | 22 |
4 |
| Sandvik Intellectual Property AB | 1485 |
4 |
| AB Sandvik Materials Technology, | 29 |
4 |
| Benteler Steel/Tube GmbH | 35 |
4 |
| Henkel AG & Co. KGaA | 10584 |
3 |
| Hyperloop Technologies, Inc. | 181 |
3 |
| Hypertherm, Inc. | 631 |
3 |
| JFE Engineering Corporation | 102 |
3 |
| Other owners | 272 |