- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 33/41 - Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection
Patent holdings for IPC class B01D 33/41
Total number of patents in this class: 50
10-year publication summary
|
8
|
6
|
5
|
6
|
3
|
6
|
4
|
0
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Charles Machine Works, Inc. | 419 |
4 |
| Duperon Innovation, LLC | 18 |
4 |
| Del Corporation | 11 |
3 |
| Maytronics Ltd. | 200 |
3 |
| Cubility AS | 33 |
2 |
| Evoqua Water Technologies LLC | 931 |
2 |
| M-I L.L.C. | 747 |
2 |
| Recover Energy Services Inc. | 51 |
2 |
| TENDER Corporation | 79 |
2 |
| UTS Biogastechnik GmbH | 28 |
2 |
| Ziemann Holvrieka GmbH | 27 |
2 |
| Samsung Electronics Co., Ltd. | 157557 |
1 |
| Schlumberger Technology Corporation | 11798 |
1 |
| A. Kayser Automotive Systems GmbH | 30 |
1 |
| Aqseptence Group GmbH | 15 |
1 |
| Bunri Incorporation | 25 |
1 |
| GD Midea Air-Conditioning Equipment Co., Ltd. | 2087 |
1 |
| Hydro International Limited, | 42 |
1 |
| Itrec B.V. | 504 |
1 |
| Metalquimia, S.A. | 36 |
1 |
| Other owners | 13 |