- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/28 - Particle separators, e.g. dust precipitators, using filter brushes
Patent holdings for IPC class B01D 46/28
Total number of patents in this class: 17
10-year publication summary
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0
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0
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2
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0
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4
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2
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1
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1
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1797 |
3 |
| Cisco Technology, Inc. | 22256 |
1 |
| Sanyo Electric Co., Ltd. | 3535 |
1 |
| Corning Incorporated | 10420 |
1 |
| 4Energy Limited | 10 |
1 |
| Durr Systems GmbH | 266 |
1 |
| Giffin, Inc. | 28 |
1 |
| InnerPoint Energy Corporation | 4 |
1 |
| Midori Anzen Co., Ltd. | 97 |
1 |
| Parker-Hannifin Corporation | 1020 |
1 |
| Zehnder Group International AG | 397 |
1 |
| Excitus AS | 6 |
1 |
| Taicang Kaimeng Precision Abrasive Tools Co. Ltd | 6 |
1 |
| MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd. | 61 |
1 |
| Reformed Energy, Inc. | 2 |
1 |
| Other owners | 0 |