- 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 9/147 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
Patent holdings for IPC class F16L 9/147
Total number of patents in this class: 239
10-year publication summary
|
17
|
11
|
13
|
25
|
7
|
11
|
19
|
25
|
13
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Titeflex Corporation | 82 |
12 |
| Uponor Innovation AB | 301 |
9 |
| Technip France | 737 |
7 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
6 |
| CORE Linepipe Inc. | 17 |
5 |
| Lubrizol Advanced Materials, Inc. | 949 |
5 |
| Borealis AG | 2558 |
4 |
| Huahan Science & Technology Co., Ltd. | 16 |
4 |
| MariCap Oy | 182 |
4 |
| ShawCor Ltd. | 79 |
4 |
| Subsea 7 Limited | 208 |
4 |
| Evonik Operations GmbH | 3879 |
4 |
| Martinrea International US Inc. | 37 |
4 |
| Stichting Administratiekantoor CRA | 4 |
4 |
| 2543500 Alberta Ltd B.d.a. Shaw Pipe Protection | 15 |
4 |
| The Chemours Company Fc, LLC | 1107 |
3 |
| Fiberspar Corporation | 11 |
3 |
| IFP Energies Nouvelles | 2717 |
3 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
3 |
| Saipem S.A. | 223 |
3 |
| Other owners | 144 |