- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
Patent holdings for IPC class B01D 39/08
Total number of patents in this class: 568
10-year publication summary
|
52
|
56
|
54
|
48
|
50
|
62
|
84
|
82
|
40
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 18406 |
14 |
| Donaldson Company, Inc. | 1513 |
13 |
| Saati S.p.A. | 110 |
13 |
| K&N Engineering, Inc. | 405 |
10 |
| W. L. Gore & Associates, Inc. | 2600 |
9 |
| HYDAC Filtertechnik GmbH | 294 |
9 |
| MANN+HUMMEL GmbH | 1682 |
9 |
| Hollingsworth & Vose Company | 274 |
8 |
| Clear Edge-germany GmbH | 12 |
7 |
| Johns Manville | 980 |
7 |
| Fenwal, Inc. | 626 |
6 |
| Toray Industries, Inc. | 6652 |
5 |
| Advanced Drainage Systems, Inc. | 304 |
5 |
| Directa Plus S.p.A. | 60 |
5 |
| The Procter & Gamble Company | 22178 |
4 |
| EMD Millipore Corporation | 657 |
4 |
| Murata Manufacturing Co., Ltd. | 22355 |
4 |
| Amogreentech Co., Ltd. | 566 |
4 |
| Aqua-Aerobic Systems, Inc. | 97 |
4 |
| Blucher GmbH | 192 |
4 |
| Other owners | 424 |