- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 55/134 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
Patent holdings for IPC class F16L 55/134
Total number of patents in this class: 74
10-year publication summary
|
6
|
9
|
8
|
12
|
10
|
5
|
5
|
4
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Flexsteel USA, LLC | 164 |
8 |
| J. van Beugen Beheer B.V. | 13 |
4 |
| Operations Technology Development, NFP | 23 |
3 |
| Petersen Resources LLC | 18 |
3 |
| Redline Detection, LLC | 33 |
3 |
| TDW Delaware, Inc. | 164 |
3 |
| Air Bag Stopper Holdings Limited | 4 |
3 |
| Cherne Industries Incorporated | 34 |
2 |
| iPEK International GmbH | 51 |
2 |
| Saudi Arabian Oil Company | 13953 |
2 |
| Vetter GmbH | 41 |
2 |
| Fairplay Towage Polska Spółka z ograniczoną odpowiedzialnością Sp.k. | 2 |
2 |
| Schlumberger Canada Limited | 7558 |
1 |
| Advanced F.M.E. Products, Inc. | 20 |
1 |
| Chemigreen Inc. | 1 |
1 |
| Chimsoc Limited | 3 |
1 |
| Holcim Technology Ltd. | 479 |
1 |
| Matrival, S.L. | 5 |
1 |
| Mueller International, LLC | 737 |
1 |
| Petro Tools AS | 3 |
1 |
| Other owners | 29 |