- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
Patent holdings for IPC class B01D 46/02
Total number of patents in this class: 647
10-year publication summary
|
71
|
59
|
50
|
76
|
65
|
64
|
33
|
42
|
25
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1607 |
32 |
| The Procter & Gamble Company | 21849 |
16 |
| Camfil AB | 234 |
16 |
| MANN+HUMMEL GmbH | 1808 |
16 |
| W. L. Gore & Associates, Inc. | 2715 |
14 |
| BHA Altair, LLC | 95 |
13 |
| Eurofilters Holding N.V. | 85 |
11 |
| K&N Engineering, Inc. | 463 |
11 |
| Food Cycle Science Corporation | 28 |
10 |
| Parker-Hannifin Corporation | 1038 |
8 |
| iRobot Corporation | 958 |
7 |
| Parker Intangibles LLC | 1170 |
7 |
| LG Chem, Ltd. | 17929 |
6 |
| Matic Robots, Inc. | 22 |
6 |
| 3m Innovative Properties Company | 17481 |
5 |
| Camfil USA, Inc. | 80 |
5 |
| Cummins Filtration IP, Inc. | 587 |
5 |
| Eurofilters N.V. | 44 |
5 |
| Pall Corporation | 340 |
5 |
| GEA Process Engineering A/S | 177 |
5 |
| Other owners | 444 |