- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/08 - Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
Patent holdings for IPC class F16L 9/08
Total number of patents in this class: 42
10-year publication summary
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5
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3
|
4
|
6
|
5
|
2
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3
|
2
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4
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Advanced Drainage Systems, Inc. | 350 |
5 |
| Construction Research & Technology GmbH | 641 |
3 |
| Henkel AG & Co. KGaA | 10601 |
2 |
| Hawkeye Concrete Products Co. | 6 |
2 |
| Hawkeyepedershaab Concrete Technologies, Inc. | 33 |
2 |
| Johann Bartlechner KG | 3 |
2 |
| University of Maine System Board of Trustees | 287 |
2 |
| Pf3 Global, LLC | 3 |
2 |
| Ameron International Corporation | 9 |
1 |
| Duktus Rohrsysteme Wetzlar GmbH | 6 |
1 |
| Engineered Wire Products, Inc. | 2 |
1 |
| IFP Energies Nouvelles | 2948 |
1 |
| Jensen Enterprises, Inc. | 16 |
1 |
| Lyonnaise des Eaux France | 10 |
1 |
| Saint-Gobain Isover | 639 |
1 |
| Saint-Gobain Pam | 73 |
1 |
| Saudi Arabian Oil Company | 13316 |
1 |
| University of Michigan | 29 |
1 |
| FSC Technologies, LLC | 6 |
1 |
| PREDL GmbH | 17 |
1 |
| Other owners | 10 |