- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 50/20 - Combinations of devices covered by groups and
Patent holdings for IPC class B01D 50/20
Total number of patents in this class: 245
10-year publication summary
|
1
|
0
|
3
|
8
|
24
|
30
|
59
|
45
|
50
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1598 |
27 |
| Omachron Intellectual Property Inc. | 898 |
22 |
| MANN+HUMMEL GmbH | 1752 |
17 |
| LG Electronics Inc. | 72675 |
7 |
| Caterpillar Inc. | 9521 |
7 |
| Cummins Filtration IP, Inc. | 808 |
7 |
| The Sy-Klone Company, LLC | 47 |
5 |
| Filtration Technology Corporation | 48 |
4 |
| Husqvarna AB | 2913 |
4 |
| Pall Corporation | 341 |
4 |
| Duerr Systems AG | 226 |
3 |
| Milaebo Co., Ltd. | 24 |
3 |
| Techtronic Industries Co. Ltd. | 102 |
3 |
| Calandra Resources, Inc. | 7 |
3 |
| Briggs & Stratton, LLC | 669 |
3 |
| Work Air Technologies Pty Ltd | 12 |
3 |
| NeuFilter GmbH | 25 |
3 |
| Hamilton Sundstrand Corporation | 4836 |
2 |
| Aisan Kogyo Kabushiki Kaisha | 737 |
2 |
| BofA International Limited | 2 |
2 |
| Other owners | 114 |