- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/22 - Safety mechanisms
Patent holdings for IPC class B01D 21/22
Total number of patents in this class: 11
10-year publication summary
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0
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0
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0
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0
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1
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2
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0
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0
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3
|
3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corea Technology Co.,Ltd. | 4 |
3 |
| Brentwood Industries, Inc. | 110 |
2 |
| LINKON TECHNOLOGY CO., LTD. (a legal entity) | 15 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10959 |
1 |
| Evoqua Water Technologies LLC | 917 |
1 |
| Suez International | 346 |
1 |
| Chang Woo Enviro Co. | 1 |
1 |
| Other owners | 0 |