- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/20 - Particle separators, e.g. dust precipitators, using filtering belts the belts combined with drums
Patent holdings for IPC class B01D 46/20
Total number of patents in this class: 16
10-year publication summary
|
1
|
2
|
5
|
0
|
2
|
1
|
0
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dyson Technology Limited | 3576 |
2 |
| Nitty-gritty S.r.l. | 18 |
2 |
| Siemens AG | 24568 |
1 |
| ZTE Corporation | 41969 |
1 |
| BISSELL Inc. | 1157 |
1 |
| Cambridge International, Inc. | 101 |
1 |
| Donaldson Company, Inc. | 1595 |
1 |
| Haier US Appliance Solutions, Inc. | 3554 |
1 |
| Osprey Corporation | 4 |
1 |
| Preston Industries, Inc. | 23 |
1 |
| Siemens Ltd., China | 811 |
1 |
| Automatic Air, LLC | 2 |
1 |
| Bissel Inc. | 325 |
1 |
| Teleios Co., Ltd. | 1 |
1 |
| Other owners | 0 |