- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/153 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
Patent holdings for IPC class F16L 9/153
Total number of patents in this class: 23
10-year publication summary
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3
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2
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0
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0
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1
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1
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3
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2
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3
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2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Technical Construction Infrastructure Inc. | 8 |
3 |
| Mekorot Water Company, Ltd | 27 |
2 |
| Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | 18 |
2 |
| Nanjing Dade Steel Pipe Co., Ltd. | 8 |
2 |
| NGK Insulators, Ltd. | 5172 |
1 |
| Tsinghua University | 6245 |
1 |
| Duktus Rohrsysteme Wetzlar GmbH | 6 |
1 |
| Hawkeyepedershaab Concrete Technologies, Inc. | 37 |
1 |
| IFP Energies Nouvelles | 3112 |
1 |
| Linde Aktiengesellschaft | 1415 |
1 |
| NGK Adrec Co., Ltd. | 30 |
1 |
| ShawCor Ltd. | 70 |
1 |
| Brugg Rohrsysteme GmbH | 2 |
1 |
| FINDLAY, Jessie | 1 |
1 |
| Tianjin Waterline Pipeline Engineering Co., Ltd | 1 |
1 |
| Zibo Environmental Protection Technology Co., Ltd. | 83 |
1 |
| Saint-Gobain PAM Canalisation | 27 |
1 |
| Next Composite Solutions, Inc. | 2 |
1 |
| Other owners | 0 |