- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/133 - Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
Patent holdings for IPC class F16L 9/133
Total number of patents in this class: 114
10-year publication summary
|
7
|
7
|
6
|
9
|
9
|
5
|
7
|
6
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sekisui Chemical Co., Ltd. | 3575 |
4 |
| Advanced Drainage Systems, Inc. | 384 |
3 |
| Rohr, Inc. | 773 |
3 |
| Ticona LLC | 602 |
3 |
| Wavin B.V. | 164 |
3 |
| Chevron Phillips Chemical Company LP | 1853 |
2 |
| Crompton Technology Group Limited | 162 |
2 |
| Flexpipe Systems Inc. | 5 |
2 |
| Hutchinson | 486 |
2 |
| Japan Polyethylene Corporation | 132 |
2 |
| Long Pipes Pty Ltd. | 10 |
2 |
| Pexcor Manufacturing Company, Inc. | 7 |
2 |
| Saint-Gobain Performance Plastics Corporation | 1043 |
2 |
| ShawCor Ltd. ShawCor Ltée | 8 |
2 |
| Solvay Specialty Polymers USA, LLC | 506 |
2 |
| Sumitomo Riko Company Limited | 1122 |
2 |
| Abu Dhabi National Oil Company | 99 |
2 |
| LG Electronics Inc. | 75112 |
1 |
| E. I. du Pont de Nemours and Company | 3661 |
1 |
| EMD Millipore Corporation | 634 |
1 |
| Other owners | 71 |