- 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 9/133 - 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: 101
10-year publication summary
|
11
|
17
|
7
|
7
|
6
|
9
|
9
|
4
|
7
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Advanced Drainage Systems, Inc. | 304 |
3 |
| Sekisui Chemical Co., Ltd. | 3159 |
3 |
| Ticona LLC | 547 |
3 |
| Arkema France | 3790 |
2 |
| Composite Fluid Transfer LLC | 18 |
2 |
| Crompton Technology Group Limited | 143 |
2 |
| Flexpipe Systems Inc. | 5 |
2 |
| Hutchinson | 455 |
2 |
| Japan Polyethylene Corporation | 112 |
2 |
| Long Pipes Pty Ltd. | 10 |
2 |
| Lupke, Manfred A. A. | 15 |
2 |
| Lupke, Stefan A. | 17 |
2 |
| Pexcor Manufacturing Company, Inc. | 7 |
2 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
2 |
| ShawCor Ltd. ShawCor Ltée | 17 |
2 |
| Sumitomo Riko Company Limited | 962 |
2 |
| Abu Dhabi National Oil Company | 98 |
2 |
| E. I. du Pont de Nemours and Company | 4345 |
1 |
| EMD Millipore Corporation | 657 |
1 |
| ExxonMobil Chemical Patents Inc. | 4286 |
1 |
| Other owners | 61 |