- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 39/12 - Filter screens essentially made of metal of wire gauzeFilter screens essentially made of metal of knitted wireFilter screens essentially made of metal of expanded metal
Patent holdings for IPC class B01D 39/12
Total number of patents in this class: 168
10-year publication summary
|
10
|
8
|
19
|
19
|
12
|
16
|
27
|
13
|
12
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ACS Industries, Inc. | 40 |
10 |
| Fuji Filter Manufacturing Co., Ltd. | 54 |
6 |
| Schlumberger Technology Corporation | 10930 |
4 |
| NV Bekaert SA | 742 |
4 |
| Yara International ASA | 860 |
4 |
| Murata Manufacturing Co., Ltd. | 24843 |
3 |
| Continental Wire Cloth, LLC | 7 |
3 |
| Luigi Lavazza S.p.A. | 755 |
3 |
| Phoenix Tailings, Inc. | 33 |
3 |
| General Electric Company | 13856 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32095 |
2 |
| Emitec Gesellschaft für Emissionstechnologie mbH | 235 |
2 |
| Aqseptence Group, Inc. | 88 |
2 |
| Autoliv ASP, Inc. | 745 |
2 |
| Cummins Filtration IP, Inc. | 806 |
2 |
| Daicel Chemical Industries, Ltd. | 219 |
2 |
| Global Nuclear Fuel - Americas, LLC | 49 |
2 |
| MANN+HUMMEL GmbH | 1771 |
2 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1790 |
2 |
| Metal Textiles Corporation | 5 |
2 |
| Other owners | 106 |