- 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 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: 77
10-year publication summary
|
7
|
8
|
6
|
9
|
8
|
12
|
9
|
5
|
5
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Trinity Bay Equipment Holdings, LLC | 244 |
9 |
| J. van Beugen Beheer B.V. | 17 |
5 |
| Cherne Industries Incorporated | 36 |
3 |
| Operations Technology Development, NFP | 24 |
3 |
| Petersen Resources LLC | 16 |
3 |
| Redline Detection, LLC | 33 |
3 |
| IPS Corporation | 145 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| TDW Delaware, Inc. | 163 |
2 |
| Vetter GmbH | 47 |
2 |
| Air Bag Stopper Holdings Limited | 4 |
2 |
| CB Canada Acquisition, Inc. | 24 |
2 |
| Fairplay Towage Polska Spółka z ograniczoną odpowiedzialnością Sp.k. | 2 |
2 |
| Schlumberger Canada Limited | 6913 |
1 |
| Advanced F.M.E. Products, Inc. | 18 |
1 |
| Chemigreen Inc. | 1 |
1 |
| Chimsoc Limited | 3 |
1 |
| Holcim Technology Ltd. | 868 |
1 |
| Matrival, S.L. | 5 |
1 |
| Petro Tools AS | 3 |
1 |
| Other owners | 30 |