- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F17B - Gas-holders of variable capacity
- F17B 1/26 - Gas-holders of variable capacity of dry type with flexible walls, e.g. bellows
Patent holdings for IPC class F17B 1/26
Total number of patents in this class: 23
10-year publication summary
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1
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0
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0
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0
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0
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0
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4
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1
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4
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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
|
|---|---|---|
| Ecomembrane S.r.l. | 5 |
3 |
| The Yokohama Rubber Co., Ltd. | 4002 |
2 |
| Hydro-Quebec | 642 |
2 |
| Hydrostor Inc. | 58 |
2 |
| Mitsubishi Electric Corporation | 45583 |
1 |
| Massachusetts Institute of Technology | 9967 |
1 |
| Thermo Finnigan LLC | 645 |
1 |
| Energyn Inc. | 23 |
1 |
| JFE Steel Corporation | 6708 |
1 |
| Microlin, LLC | 50 |
1 |
| Mt-energie GmbH & Co. KG | 3 |
1 |
| Sattler AG | 76 |
1 |
| Sumitomo Seika Chemicals Co., Ltd. | 1032 |
1 |
| Teijin Fibers Limited | 55 |
1 |
| University of Virginia Patent Foundation | 1548 |
1 |
| Battelle Savannah River Alliance, LLC | 216 |
1 |
| Ecomembrane SpA | 12 |
1 |
| The Waste Transformers Investments B.V. | 1 |
1 |
| Other owners | 0 |