- 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: 637
10-year publication summary
|
71
|
59
|
50
|
76
|
65
|
64
|
33
|
42
|
22
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1592 |
32 |
| The Procter & Gamble Company | 21920 |
16 |
| Camfil AB | 237 |
16 |
| MANN+HUMMEL GmbH | 1800 |
16 |
| W. L. Gore & Associates, Inc. | 2705 |
13 |
| BHA Altair, LLC | 98 |
13 |
| Eurofilters Holding N.V. | 85 |
11 |
| K&N Engineering, Inc. | 454 |
10 |
| Food Cycle Science Corporation | 27 |
10 |
| Parker-Hannifin Corporation | 1017 |
8 |
| iRobot Corporation | 955 |
7 |
| Parker Intangibles LLC | 1179 |
7 |
| LG Chem, Ltd. | 17867 |
6 |
| Matic Robots, Inc. | 22 |
6 |
| 3m Innovative Properties Company | 17507 |
5 |
| Camfil USA, Inc. | 68 |
5 |
| Cummins Filtration IP, Inc. | 622 |
5 |
| Eurofilters N.V. | 45 |
5 |
| GEA Process Engineering A/S | 172 |
5 |
| Haldor Topsøe A/S | 637 |
5 |
| Other owners | 436 |