- 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: 269
10-year publication summary
|
0
|
2
|
8
|
25
|
30
|
59
|
41
|
48
|
33
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1600 |
27 |
| Omachron Intellectual Property Inc. | 941 |
25 |
| MANN+HUMMEL GmbH | 1791 |
20 |
| LG Electronics Inc. | 74262 |
7 |
| Caterpillar Inc. | 9983 |
7 |
| Cummins Filtration IP, Inc. | 776 |
7 |
| The Sy-Klone Company, LLC | 47 |
5 |
| Filtration Technology Corporation | 48 |
4 |
| Husqvarna AB | 2968 |
4 |
| Pall Corporation | 341 |
4 |
| The Charles Machine Works, Inc. | 415 |
3 |
| Duerr Systems AG | 244 |
3 |
| Milaebo Co., Ltd. | 24 |
3 |
| Techtronic Industries Co. Ltd. | 101 |
3 |
| Calandra Resources, Inc. | 7 |
3 |
| Briggs & Stratton, LLC | 685 |
3 |
| Work Air Technologies Pty Ltd | 12 |
3 |
| NeuFilter GmbH | 28 |
3 |
| Hamilton Sundstrand Corporation | 4994 |
2 |
| Aisan Kogyo Kabushiki Kaisha | 759 |
2 |
| Other owners | 131 |