- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F17D - Pipe-line systemspipe-lines
- F17D 5/04 - Preventing, monitoring, or locating loss by means of a signalling fluid enclosed in a double wall
Patent holdings for IPC class F17D 5/04
Total number of patents in this class: 41
10-year publication summary
|
2
|
0
|
8
|
1
|
2
|
1
|
4
|
8
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Flexsteel USA, LLC | 146 |
5 |
| Atomic Energy of Canada Limited | 128 |
3 |
| Joint Stock Company "atomenergoproekt" | 92 |
3 |
| Fortescue Future Industries Pty Ltd | 55 |
3 |
| Pioneer Lining Technology Limited | 31 |
2 |
| Smart Pipe Company, Inc. | 26 |
2 |
| Joint Stock Company "science and Innovations" ("science and Innovations", Jsc) | 23 |
2 |
| Vinje Industri AS | 3 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8641 |
1 |
| Chevron U.S.A. Inc. | 3922 |
1 |
| ABB Technology AG | 1256 |
1 |
| Atmos Wave Limited | 3 |
1 |
| Daewoo Shipbuilding & Marine Engineering Co., Ltd. | 235 |
1 |
| Dunlop Oil & Marine Limited | 24 |
1 |
| OMV Refining & Marketing GmbH | 8 |
1 |
| Pebble Bed Modular Reactor (Proprietary) Limited | 23 |
1 |
| Universidad de Chile | 170 |
1 |
| Zhejiang University | 3087 |
1 |
| Trinity Bay Equipment Holdings, LLC | 76 |
1 |
| ABN Pipe Systems S.L.U. | 20 |
1 |
| Other owners | 7 |