- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 33/044 - Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering
Patent holdings for IPC class B01D 33/044
Total number of patents in this class: 19
10-year publication summary
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2
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2
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2
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1
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2
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1
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2
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0
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2
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Red Sea Aquatics Development Ltd | 17 |
3 |
| Halliburton Energy Services, Inc. | 20911 |
2 |
| Stora Enso Oyj | 1647 |
2 |
| Z-filter Pty Ltd | 4 |
2 |
| Zumex Group S.A. | 86 |
2 |
| Mitsubishi Chemical Corporation | 4525 |
1 |
| Danmarks Tekniske Universitet (dtu) | 22 |
1 |
| Outotec (Finland) Oy | 480 |
1 |
| Sulzer Management AG | 667 |
1 |
| Technical University of Denmark | 158 |
1 |
| Vermeer Manufacturing Company | 638 |
1 |
| Aquacache, Inc. | 2 |
1 |
| Sichuan Province Zhonghuanguoneng Technology Co. Ltd | 1 |
1 |
| Other owners | 0 |