- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 55/28 - Constructional aspects
Patent holdings for IPC class F16L 55/28
Total number of patents in this class: 194
10-year publication summary
|
9
|
16
|
16
|
21
|
19
|
18
|
17
|
13
|
15
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rosen Swiss AG | 84 |
8 |
| iPEK International GmbH | 55 |
5 |
| Petroleo Brasileiro S.A. - Petrobras | 968 |
5 |
| TDW Delaware, Inc. | 165 |
5 |
| Rosen IP AG | 23 |
5 |
| Saudi Arabian Oil Company | 14248 |
4 |
| Seescan, Inc. | 571 |
4 |
| Rosen IP AG | 56 |
4 |
| INA Acquisition Corp. | 129 |
3 |
| Pipeline Innovations Limited | 3 |
3 |
| S & B Technical Products, Inc. | 85 |
3 |
| Championx LLC | 641 |
3 |
| Halliburton Energy Services, Inc. | 21320 |
2 |
| Massachusetts Institute of Technology | 10254 |
2 |
| Athena Industrial Technologies Inc. | 18 |
2 |
| Candu Energy Inc. | 69 |
2 |
| China University of Petroleum (Beijing) | 303 |
2 |
| Electricite de France | 755 |
2 |
| e.V. Offshore Limited | 67 |
2 |
| Fiberbuilt Manufacturing Inc. | 18 |
2 |
| Other owners | 126 |