- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 33/27 - Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
Patent holdings for IPC class B01D 33/27
Total number of patents in this class: 48
10-year publication summary
|
2
|
3
|
3
|
9
|
5
|
7
|
2
|
5
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Liberty Lift Solutions LLC | 48 |
5 |
| Superior Industries, Inc. | 217 |
4 |
| Duke Technologies, LLC | 35 |
4 |
| Samsung Electronics Co., Ltd. | 157719 |
2 |
| Amukon Kabushiki Kaisha | 9 |
2 |
| Comer S.p.A. | 5 |
2 |
| Cummins Filtration IP, Inc. | 590 |
2 |
| Soil Net LLC | 9 |
2 |
| Vorsana, Inc. | 26 |
2 |
| Farmland Irrigation Research Institute, CAAS | 3 |
2 |
| EMD Millipore Corporation | 631 |
1 |
| Franklin Miller, Inc. | 20 |
1 |
| GEA Farm Technologies Canada Inc. | 17 |
1 |
| GEA Houle Inc. | 14 |
1 |
| Greystone Incorporated | 4 |
1 |
| Nepuree Corporation | 6 |
1 |
| Passavant-Geiger GmbH | 27 |
1 |
| Pentair, Inc. | 46 |
1 |
| SABIC Global Technologies B.V. | 4597 |
1 |
| Taprogge GmbH | 23 |
1 |
| Other owners | 11 |