- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 22
10-year publication summary
|
2
|
1
|
0
|
0
|
0
|
0
|
0
|
4
|
1
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecomembrane S.r.l. | 6 |
3 |
| The Yokohama Rubber Co., Ltd. | 3929 |
2 |
| Hydro-Quebec | 637 |
2 |
| Hydrostor Inc. | 49 |
2 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Massachusetts Institute of Technology | 9795 |
1 |
| Thermo Finnigan LLC | 625 |
1 |
| Golden Triangle Enterprises Pty Ltd. | 2 |
1 |
| JFE Steel Corporation | 6067 |
1 |
| Microlin, LLC | 54 |
1 |
| Mt-energie GmbH & Co. KG | 3 |
1 |
| Sattler AG | 68 |
1 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
1 |
| Teijin Fibers Limited | 66 |
1 |
| Tokyo Gas Co., Ltd. | 84 |
1 |
| Ecomembrane SpA | 10 |
1 |
| The Waste Transformers Investments B.V. | 1 |
1 |
| Other owners | 0 |