- 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 55/136 - 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 expanding or deforming a split ring, hooks or the like
Patent holdings for IPC class F16L 55/136
Total number of patents in this class: 84
10-year publication summary
|
6
|
3
|
6
|
3
|
2
|
15
|
3
|
11
|
2
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDW Delaware, Inc. | 163 |
17 |
| TDW Offshore Services AS | 27 |
5 |
| EST Group, Inc. | 24 |
4 |
| USA Industries, LLC | 32 |
4 |
| Electricite de France | 695 |
3 |
| INA Acquisition Corp. | 134 |
3 |
| Quality Intervention Technology AS | 13 |
3 |
| Scott Lock Company | 3 |
3 |
| Geoservices Equipements | 64 |
2 |
| I.s.i.f. S.r.l. | 8 |
2 |
| CB Canada Acquisition, Inc. | 24 |
2 |
| Schlumberger Technology Corporation | 9690 |
1 |
| The Boeing Company | 19843 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Pratt & Whitney Canada Corp. | 4215 |
1 |
| Robert Bosch GmbH | 40953 |
1 |
| Alstom Technology Ltd | 1196 |
1 |
| Aker Solutions AS | 226 |
1 |
| Aker Subsea AS | 130 |
1 |
| Areva NP | 228 |
1 |
| Other owners | 27 |