- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 25/21 - Plate and frame presses
Patent holdings for IPC class B01D 25/21
Total number of patents in this class: 151
10-year publication summary
|
5
|
6
|
14
|
8
|
30
|
11
|
21
|
9
|
6
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Metso Finland Oy | 698 |
34 |
| Metso Outotec Finland Oy | 171 |
16 |
| JVK Filtration Systems GmbH | 26 |
13 |
| Outotec (Finland) Oy | 455 |
10 |
| Smartflow Technologies, Inc. | 59 |
6 |
| FLSmidth A/S | 785 |
5 |
| Evoqua Water Technologies LLC | 928 |
4 |
| Outotec Suzhou Co., Ltd | 6 |
4 |
| Metso Finland Oy | 8 |
4 |
| Klinkau GmbH & Co. | 4 |
3 |
| Veolia Water Solutions & Technologies Support | 533 |
3 |
| Krones AG | 2307 |
2 |
| Larox Oyj | 4 |
2 |
| Strassburger Filter GmbH & Co. KG | 10 |
2 |
| Evonik Operations GmbH | 4443 |
2 |
| Global Life Sciences Solutions USA LLC | 531 |
2 |
| Diemme Soil Washing S.r.l. | 2 |
2 |
| JZ Engineering GmbH | 3 |
2 |
| Thejo Engineering Limited | 13 |
2 |
| Jingjin Equipment Inc. | 18 |
2 |
| Other owners | 31 |