- 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: 626
10-year publication summary
|
45
|
58
|
56
|
49
|
71
|
51
|
61
|
29
|
37
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1589 |
31 |
| The Procter & Gamble Company | 21999 |
16 |
| Camfil AB | 233 |
16 |
| MANN+HUMMEL GmbH | 1775 |
16 |
| BHA Altair, LLC | 103 |
13 |
| W. L. Gore & Associates, Inc. | 2723 |
12 |
| Eurofilters Holding N.V. | 90 |
11 |
| Food Cycle Science Corporation | 27 |
10 |
| Parker-Hannifin Corporation | 997 |
8 |
| K&N Engineering, Inc. | 438 |
8 |
| iRobot Corporation | 960 |
7 |
| Parker Intangibles LLC | 1202 |
7 |
| LG Chem, Ltd. | 17685 |
6 |
| Cummins Filtration IP, Inc. | 805 |
6 |
| 3m Innovative Properties Company | 17739 |
5 |
| Baldwin Filters, Inc. | 240 |
5 |
| Camfil USA, Inc. | 66 |
5 |
| Eurofilters N.V. | 50 |
5 |
| Pall Corporation | 337 |
5 |
| GEA Process Engineering A/S | 166 |
5 |
| Other owners | 429 |