- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
Patent holdings for IPC class B01D 46/56
Total number of patents in this class: 54
10-year publication summary
|
0
|
1
|
3
|
1
|
0
|
6
|
12
|
16
|
9
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72675 |
5 |
| Donaldson Company, Inc. | 1598 |
2 |
| Dyson Technology Limited | 3617 |
2 |
| EOS GmbH Electro Optical Systems | 412 |
2 |
| MANN+HUMMEL GmbH | 1752 |
2 |
| Pall Corporation | 341 |
2 |
| Samsung Electronics Co., Ltd. | 144675 |
1 |
| International Business Machines Corporation | 61144 |
1 |
| Boehringer Ingelheim Pharma GmbH & Co. Kg | 588 |
1 |
| Philip Morris Products S.A. | 7607 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8664 |
1 |
| Ricoh Company, Ltd. | 13205 |
1 |
| Whirlpool Corporation | 4400 |
1 |
| Carrier Corporation | 4353 |
1 |
| The United States of America as represented by the Secretary of the Army | 1209 |
1 |
| Abatement Technologies, Inc. | 42 |
1 |
| Anua Clean Air International Limited | 7 |
1 |
| Bombardier Recreational Products Inc. | 1377 |
1 |
| BSH Hausgeräte GmbH | 5517 |
1 |
| Calgon Carbon Corporation | 239 |
1 |
| Other owners | 25 |