- 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 55/28 - Constructional aspects
Patent holdings for IPC class F16L 55/28
Total number of patents in this class: 173
10-year publication summary
|
10
|
9
|
16
|
16
|
21
|
19
|
16
|
16
|
9
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rosen Swiss AG | 95 |
8 |
| Rosen IP AG | 63 |
8 |
| Petroleo Brasileiro S.A. - Petrobras | 780 |
5 |
| iPEK International GmbH | 27 |
4 |
| Saudi Arabian Oil Company | 12423 |
4 |
| Seescan, Inc. | 490 |
4 |
| TDW Delaware, Inc. | 167 |
4 |
| Quest Integrity Group LLC | 18 |
4 |
| INA Acquisition Corp. | 131 |
3 |
| Pipeline Innovations Limited | 3 |
3 |
| S & B Technical Products, Inc. | 89 |
3 |
| Massachusetts Institute of Technology | 9912 |
2 |
| Athena Industrial Technologies Inc. | 17 |
2 |
| Candu Energy Inc. | 48 |
2 |
| China University of Petroleum (Beijing) | 271 |
2 |
| Electricite de France | 715 |
2 |
| e.V. Offshore Limited | 61 |
2 |
| Fiberbuilt Manufacturing Inc. | 19 |
2 |
| HiBot Corp. | 32 |
2 |
| King Fahd University of Petroleum and Minerals | 1007 |
2 |
| Other owners | 105 |