- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/31 - Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features
Patent holdings for IPC class B01D 35/31
Total number of patents in this class: 62
10-year publication summary
|
3
|
8
|
5
|
7
|
3
|
2
|
4
|
3
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HYDAC Filtertechnik GmbH | 286 |
5 |
| MANN+HUMMEL GmbH | 1812 |
4 |
| Samsung Electronics Co., Ltd. | 157557 |
3 |
| Pall Corporation | 341 |
3 |
| A.L. Filter Co. Limited | 3 |
2 |
| Energy Recovery, Inc. | 191 |
2 |
| Entegris, Inc. | 2008 |
2 |
| MAHLE International GmbH | 2911 |
2 |
| Parker-Hannifin Corporation | 1034 |
2 |
| Volvo Truck Corporation | 3902 |
2 |
| Atmus Filtration IP Inc. | 273 |
2 |
| Pratt & Whitney Canada Corp. | 5472 |
1 |
| Robert Bosch GmbH | 44128 |
1 |
| BASF AG | 123 |
1 |
| Ford Global Technologies, LLC | 21478 |
1 |
| Bel-Art Products, Inc. | 7 |
1 |
| BSH Hausgeräte GmbH | 5623 |
1 |
| CLARCOR Inc. | 56 |
1 |
| Coavis | 85 |
1 |
| Cummins Emission Solutions, Inc. | 579 |
1 |
| Other owners | 24 |