- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 55/12 - Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
Patent holdings for IPC class F16L 55/12
Total number of patents in this class: 81
10-year publication summary
|
2
|
3
|
10
|
10
|
6
|
12
|
1
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Petersen Resources LLC | 19 |
5 |
| INA Acquisition Corp. | 127 |
4 |
| Cherne Industries Incorporated | 34 |
3 |
| IPS Corporation | 130 |
3 |
| Mueller International, LLC | 744 |
3 |
| Saudi Arabian Oil Company | 14329 |
3 |
| TDW Delaware, Inc. | 165 |
3 |
| TEAM Industrial Services, Inc. | 65 |
3 |
| Encapsys, LLC | 196 |
2 |
| IPS Adhesives LLC | 59 |
2 |
| IPS Structural Adhesives, Inc. | 68 |
2 |
| Operations Technology Development, NFP | 23 |
2 |
| Petroleo Brasileiro S.A. - Petrobras | 973 |
2 |
| Watertite Products, Inc. | 101 |
2 |
| Safran Landing Systems UK Ltd | 189 |
2 |
| Weld-on Adhesives, Inc. | 65 |
2 |
| WELEAD Infrastructure Engineering Technology (Zhengzhou), Ltd. | 11 |
2 |
| EnReach Hot Tap Services Inc. | 5 |
2 |
| Baker Hughes Incorporated | 4903 |
1 |
| The Boeing Company | 20196 |
1 |
| Other owners | 32 |